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Finding the Fourth Proportional to 558,847.74, 838,279.48 and 159,488.56

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Solution

The fourth proportional to 558,847.74, 838,279.48 and 159,488.56 is: 239,235.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,847.74 : 838,279.48 = 159,488.56 : x
  2. Step 2: Convert to fraction form
    558,847.74/838,279.48 = 159,488.56/x
  3. Step 3: Cross multiply
    558,847.74x = 838,279.48 × 159,488.56
  4. Step 4: Simplify right side
    558,847.74x = 133,695,987,142.75
  5. Step 5: Solve for x
    x = 133,695,987,142.75/558,847.74
  6. Step 6: Final answer
    x = 239,235.09

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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.