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Finding the Fourth Proportional to 66,493,729.60, 99,656,613.60 and 32,341,537.60

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Solution

The fourth proportional to 66,493,729.60, 99,656,613.60 and 32,341,537.60 is: 48,471,459.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,493,729.60 : 99,656,613.60 = 32,341,537.60 : x
  2. Step 2: Convert to fraction form
    66,493,729.60/99,656,613.60 = 32,341,537.60/x
  3. Step 3: Cross multiply
    66,493,729.60x = 99,656,613.60 × 32,341,537.60
  4. Step 4: Simplify right side
    66,493,729.60x = 3,223,048,115,833,071.50
  5. Step 5: Solve for x
    x = 3,223,048,115,833,071.50/66,493,729.60
  6. Step 6: Final answer
    x = 48,471,459.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.