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Finding the Fourth Proportional to 63,149.40, 87,062.43 and 52,353.53

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Solution

The fourth proportional to 63,149.40, 87,062.43 and 52,353.53 is: 72,178.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,149.40 : 87,062.43 = 52,353.53 : x
  2. Step 2: Convert to fraction form
    63,149.40/87,062.43 = 52,353.53/x
  3. Step 3: Cross multiply
    63,149.40x = 87,062.43 × 52,353.53
  4. Step 4: Simplify right side
    63,149.40x = 4,558,025,105.57
  5. Step 5: Solve for x
    x = 4,558,025,105.57/63,149.40
  6. Step 6: Final answer
    x = 72,178.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.