Question 59967
Year (t) 1 2 3 4
Amount collected 6.1 12.3 24.7 50
The relationship between the y-terms is a multiply of about 2.016
For example: 
12.3/6.1=2.0163
24.7/12.3=2.081
24.7/12.3=2.0081
50/24.7=2.02429
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If you graph the points (1,6.1) (2, 12.3), (3, 24.7) and (4,50), you will get an expontential graph.

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Since each consecutive y-value is multiplied by about 2.016, to find the 5th term, multiply the 4th term by 2.016:
(50)(2.016)=100.8
And to find the 6th term:
(100.8)(2.016)=203.2128