Series where the common ratio r > 1. The first four geometric series are provided. Extend the list by adding your own series where r > 1.
a) 2, 4, 8, 16, 32
b) 3, 9, 27, 81, 243
c) 5, 10, 20, 40, 80
d) 6, 12, 24, 48, 96