The relationship between labour usage and output at the local Starducks is summarized in the table below.The price of a cup of espresso is $1.25 and no other inputs are required. 
-Refer to the information above.The marginal product of the fourth worker is _________ cups of espresso.
Definitions:
Consumer's Income
The total amount of income earned by consumers, determining their purchasing power and ability to afford goods and services.
Utility Maximization
The process by which consumers adjust their consumption to get the highest level of satisfaction from their available resources.
MU/P Ratio
The ratio of marginal utility (the additional satisfaction from consuming one more unit of a good) to its price, often used in consumer choice theory to maximize utility.
MU/P Ratio
A term not widely recognized or may be misinterpreted without context; likely refers to the marginal utility to price ratio, assessing the consumer satisfaction per unit of currency spent.
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