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Finding the Fourth Proportional to 71,929,606.80, 107,894,410.20 and 52,797,730.80

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Solution

The fourth proportional to 71,929,606.80, 107,894,410.20 and 52,797,730.80 is: 79,196,596.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,929,606.80 : 107,894,410.20 = 52,797,730.80 : x
  2. Step 2: Convert to fraction form
    71,929,606.80/107,894,410.20 = 52,797,730.80/x
  3. Step 3: Cross multiply
    71,929,606.80x = 107,894,410.20 × 52,797,730.80
  4. Step 4: Simplify right side
    71,929,606.80x = 5,696,580,024,564,374
  5. Step 5: Solve for x
    x = 5,696,580,024,564,374/71,929,606.80
  6. Step 6: Final answer
    x = 79,196,596.20

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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.