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Finding the Fourth Proportional to 67,871.52, 101,866.68 and 36,306.72

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Solution

The fourth proportional to 67,871.52, 101,866.68 and 36,306.72 is: 54,491.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,871.52 : 101,866.68 = 36,306.72 : x
  2. Step 2: Convert to fraction form
    67,871.52/101,866.68 = 36,306.72/x
  3. Step 3: Cross multiply
    67,871.52x = 101,866.68 × 36,306.72
  4. Step 4: Simplify right side
    67,871.52x = 3,698,445,028.09
  5. Step 5: Solve for x
    x = 3,698,445,028.09/67,871.52
  6. Step 6: Final answer
    x = 54,491.86

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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.