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Finding the Fourth Proportional to 153,372.43, 229,951.92 and 67,936.91

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Solution

The fourth proportional to 153,372.43, 229,951.92 and 67,936.91 is: 101,858.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,372.43 : 229,951.92 = 67,936.91 : x
  2. Step 2: Convert to fraction form
    153,372.43/229,951.92 = 67,936.91/x
  3. Step 3: Cross multiply
    153,372.43x = 229,951.92 × 67,936.91
  4. Step 4: Simplify right side
    153,372.43x = 15,622,221,403.92
  5. Step 5: Solve for x
    x = 15,622,221,403.92/153,372.43
  6. Step 6: Final answer
    x = 101,858.08

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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.