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Finding the Fourth Proportional to 66,864.49, 100,229.17 and 41,922.04

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Solution

The fourth proportional to 66,864.49, 100,229.17 and 41,922.04 is: 62,840.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,864.49 : 100,229.17 = 41,922.04 : x
  2. Step 2: Convert to fraction form
    66,864.49/100,229.17 = 41,922.04/x
  3. Step 3: Cross multiply
    66,864.49x = 100,229.17 × 41,922.04
  4. Step 4: Simplify right side
    66,864.49x = 4,201,811,273.91
  5. Step 5: Solve for x
    x = 4,201,811,273.91/66,864.49
  6. Step 6: Final answer
    x = 62,840.70

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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.