What is the common ratio for this geometric sequence ?

6

The ##n^(th)## term of a geometric sequence is generated by:
##a_n = a_”n-1″ xx r##
Where r is the common ratio
In this example: ##a_0 = 4##
##a_1 = 24 = a_0 xx 6##
##a_2 = 144 = a_1 xx 6##
.. and similarly for ##a_3##
Hence: The common ratio ##r = 6##

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