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Finding the Fourth Proportional to 381,343.52, 572,048.52 and 125,099.25

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Solution

The fourth proportional to 381,343.52, 572,048.52 and 125,099.25 is: 187,659.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,343.52 : 572,048.52 = 125,099.25 : x
  2. Step 2: Convert to fraction form
    381,343.52/572,048.52 = 125,099.25/x
  3. Step 3: Cross multiply
    381,343.52x = 572,048.52 × 125,099.25
  4. Step 4: Simplify right side
    381,343.52x = 71,562,840,815.61
  5. Step 5: Solve for x
    x = 71,562,840,815.61/381,343.52
  6. Step 6: Final answer
    x = 187,659.78

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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.