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Finding the Fourth Proportional to 96,998,489.60, 145,553,721.60 and 36,420,339.20

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Solution

The fourth proportional to 96,998,489.60, 145,553,721.60 and 36,420,339.20 is: 54,651,530.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,998,489.60 : 145,553,721.60 = 36,420,339.20 : x
  2. Step 2: Convert to fraction form
    96,998,489.60/145,553,721.60 = 36,420,339.20/x
  3. Step 3: Cross multiply
    96,998,489.60x = 145,553,721.60 × 36,420,339.20
  4. Step 4: Simplify right side
    96,998,489.60x = 5,301,115,912,494,367
  5. Step 5: Solve for x
    x = 5,301,115,912,494,367/96,998,489.60
  6. Step 6: Final answer
    x = 54,651,530.50

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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.