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Finding the Fourth Proportional to 63,165.20, 87,167.97 and 34,871.09

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Solution

The fourth proportional to 63,165.20, 87,167.97 and 34,871.09 is: 48,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,165.20 : 87,167.97 = 34,871.09 : x
  2. Step 2: Convert to fraction form
    63,165.20/87,167.97 = 34,871.09/x
  3. Step 3: Cross multiply
    63,165.20x = 87,167.97 × 34,871.09
  4. Step 4: Simplify right side
    63,165.20x = 3,039,641,691.15
  5. Step 5: Solve for x
    x = 3,039,641,691.15/63,165.20
  6. Step 6: Final answer
    x = 48,122.10

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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.