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Finding the Fourth Proportional to 101,311.65, 151,874.55 and 38,935.17

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Solution

The fourth proportional to 101,311.65, 151,874.55 and 38,935.17 is: 58,367.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,311.65 : 151,874.55 = 38,935.17 : x
  2. Step 2: Convert to fraction form
    101,311.65/151,874.55 = 38,935.17/x
  3. Step 3: Cross multiply
    101,311.65x = 151,874.55 × 38,935.17
  4. Step 4: Simplify right side
    101,311.65x = 5,913,261,422.92
  5. Step 5: Solve for x
    x = 5,913,261,422.92/101,311.65
  6. Step 6: Final answer
    x = 58,367.04

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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.