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Finding the Fourth Proportional to 123,959.92, 171,063.74 and 67,371.70

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Solution

The fourth proportional to 123,959.92, 171,063.74 and 67,371.70 is: 92,972.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,959.92 : 171,063.74 = 67,371.70 : x
  2. Step 2: Convert to fraction form
    123,959.92/171,063.74 = 67,371.70/x
  3. Step 3: Cross multiply
    123,959.92x = 171,063.74 × 67,371.70
  4. Step 4: Simplify right side
    123,959.92x = 11,524,854,972.16
  5. Step 5: Solve for x
    x = 11,524,854,972.16/123,959.92
  6. Step 6: Final answer
    x = 92,972.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.