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Finding the Fourth Proportional to 39,145,217.20, 58,717,825.80 and 39,145,217.20

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Solution

The fourth proportional to 39,145,217.20, 58,717,825.80 and 39,145,217.20 is: 58,717,825.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,145,217.20 : 58,717,825.80 = 39,145,217.20 : x
  2. Step 2: Convert to fraction form
    39,145,217.20/58,717,825.80 = 39,145,217.20/x
  3. Step 3: Cross multiply
    39,145,217.20x = 58,717,825.80 × 39,145,217.20
  4. Step 4: Simplify right side
    39,145,217.20x = 2,298,522,044,452,764
  5. Step 5: Solve for x
    x = 2,298,522,044,452,764/39,145,217.20
  6. Step 6: Final answer
    x = 58,717,825.80

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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.