Question 1173620
 Nigeria had the highest population  growth of 62.4% 
Nigeria's pollution is 97,552 thousands in 1990.  
 Find the population of Nigeria in 2010 (x)
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Hi,
Let x be the population of Nigeria in 2010.
Had the right idea on the 1.624. Good Job.
However it was the 997,552 that was doing the increasing.
So that would be:
x = 1.624(97,552) =  158,424 the population of Nigeria in 2010
Wish You the Best in your Studies.