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Finding the Fourth Proportional to 83,762,890.80, 125,644,336.20 and 62,239,530.30

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Solution

The fourth proportional to 83,762,890.80, 125,644,336.20 and 62,239,530.30 is: 93,359,295.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,762,890.80 : 125,644,336.20 = 62,239,530.30 : x
  2. Step 2: Convert to fraction form
    83,762,890.80/125,644,336.20 = 62,239,530.30/x
  3. Step 3: Cross multiply
    83,762,890.80x = 125,644,336.20 × 62,239,530.30
  4. Step 4: Simplify right side
    83,762,890.80x = 7,820,044,469,943,287
  5. Step 5: Solve for x
    x = 7,820,044,469,943,287/83,762,890.80
  6. Step 6: Final answer
    x = 93,359,295.45

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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.