Question

if there were 161,809,242 females in the US in 2014 and 5.9% were diagnosed with diabetes, how many females had been diagnosed?

Answer 1

Im 90% sure its 9546745 females

Answer 2

For this case what we can do is the following rule of three:
 161,809,242 ------> 100%
 x ---------------------> 5.9%
 Clearing x we have:
 x = (161809242) * (5.9 / 100)
 x = 9546745.278
 Nearest whole number:
 x = 9546745
 Answer: 
 had been diagnosed about 9546745 females