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Finding the Fourth Proportional to 125,343.46, 187,959.84 and 58,729.78

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Solution

The fourth proportional to 125,343.46, 187,959.84 and 58,729.78 is: 88,068.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,343.46 : 187,959.84 = 58,729.78 : x
  2. Step 2: Convert to fraction form
    125,343.46/187,959.84 = 58,729.78/x
  3. Step 3: Cross multiply
    125,343.46x = 187,959.84 × 58,729.78
  4. Step 4: Simplify right side
    125,343.46x = 11,038,840,052.04
  5. Step 5: Solve for x
    x = 11,038,840,052.04/125,343.46
  6. Step 6: Final answer
    x = 88,068.74

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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.