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Finding the Fourth Proportional to 67,932.47, 101,861.35 and 36,379.53

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Solution

The fourth proportional to 67,932.47, 101,861.35 and 36,379.53 is: 54,549.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,932.47 : 101,861.35 = 36,379.53 : x
  2. Step 2: Convert to fraction form
    67,932.47/101,861.35 = 36,379.53/x
  3. Step 3: Cross multiply
    67,932.47x = 101,861.35 × 36,379.53
  4. Step 4: Simplify right side
    67,932.47x = 3,705,667,947.22
  5. Step 5: Solve for x
    x = 3,705,667,947.22/67,932.47
  6. Step 6: Final answer
    x = 54,549.29

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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.