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Identify the number that does NOT belong to the following series.
30, 15, 15, 22.5, 46, 112.5
$$30\times0.5 = 15$$
$$15\times1 = 15$$
$$15\times1.5 = 22.5$$
$$22.5\times2 = 45$$
$$45\times2.5 = 112.5$$
Here '46' does not belong to the given series.
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