A company has developed a linear trend regression model based on 16 quarters of data.The independent variable is the measure of time (t = 1 thru 16 where quarter 1 is winter quarter,2 is spring,etc. ) .The company has also developed seasonal indexes for each quarter as follows: 
The linear trend forecast equation is: 
= 120 + 56t.
Given this information,what is the seasonally unadjusted forecast for period 19?
Definitions:
Superannuation Fund
A superannuation fund is a pension program created by a company for the benefit of its employees, primarily practiced in Australia.
Legal Obligation
A duty that is legally enforceable because it arises out of a contract or legal requirement.
Defined Benefit Obligation
A company's liability to pay its employees' retirement benefits, calculated based on factors like salary histories and years of service.
Current Period
Refers to the present accounting period under consideration, usually a fiscal quarter or year.
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