Give the step-by-step reasoning process and then the final answer. Daliah picked up 17.5 pounds of garbage. Dewei picked up 2 pounds less than Daliah. Zane picked up 4 times as many pounds of garbage as Dewei. How many pounds of garbage did Zane pick up?

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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Daliah = 17.5 pounds. Dewei + 17.5 - 2 = 15.5 pounds. Zane = 4 * 15.5 = 62 pounds. Zane picked up 62 pounds of garbage.
The final answer: 62.