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Finding the Fourth Proportional to 372,503.18, 558,760.12 and 106,263.72

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Solution

The fourth proportional to 372,503.18, 558,760.12 and 106,263.72 is: 159,397.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,503.18 : 558,760.12 = 106,263.72 : x
  2. Step 2: Convert to fraction form
    372,503.18/558,760.12 = 106,263.72/x
  3. Step 3: Cross multiply
    372,503.18x = 558,760.12 × 106,263.72
  4. Step 4: Simplify right side
    372,503.18x = 59,375,930,842.43
  5. Step 5: Solve for x
    x = 59,375,930,842.43/372,503.18
  6. Step 6: Final answer
    x = 159,397.11

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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.