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Finding the Fourth Proportional to 66,413,807.20, 99,639,373.20 and 32,336,264.80

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Solution

The fourth proportional to 66,413,807.20, 99,639,373.20 and 32,336,264.80 is: 48,513,483.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,413,807.20 : 99,639,373.20 = 32,336,264.80 : x
  2. Step 2: Convert to fraction form
    66,413,807.20/99,639,373.20 = 32,336,264.80/x
  3. Step 3: Cross multiply
    66,413,807.20x = 99,639,373.20 × 32,336,264.80
  4. Step 4: Simplify right side
    66,413,807.20x = 3,221,965,156,301,223.50
  5. Step 5: Solve for x
    x = 3,221,965,156,301,223.50/66,413,807.20
  6. Step 6: Final answer
    x = 48,513,483.75

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