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Finding the Fourth Proportional to 71,369.30, 106,951.55 and 52,502.10

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Solution

The fourth proportional to 71,369.30, 106,951.55 and 52,502.10 is: 78,677.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,369.30 : 106,951.55 = 52,502.10 : x
  2. Step 2: Convert to fraction form
    71,369.30/106,951.55 = 52,502.10/x
  3. Step 3: Cross multiply
    71,369.30x = 106,951.55 × 52,502.10
  4. Step 4: Simplify right side
    71,369.30x = 5,615,180,973.26
  5. Step 5: Solve for x
    x = 5,615,180,973.26/71,369.30
  6. Step 6: Final answer
    x = 78,677.82

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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.