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Finding the Fourth Proportional to 372,967.92, 559,320.12 and 120,238.20

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Solution

The fourth proportional to 372,967.92, 559,320.12 and 120,238.20 is: 180,314.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,967.92 : 559,320.12 = 120,238.20 : x
  2. Step 2: Convert to fraction form
    372,967.92/559,320.12 = 120,238.20/x
  3. Step 3: Cross multiply
    372,967.92x = 559,320.12 × 120,238.20
  4. Step 4: Simplify right side
    372,967.92x = 67,251,644,452.58
  5. Step 5: Solve for x
    x = 67,251,644,452.58/372,967.92
  6. Step 6: Final answer
    x = 180,314.82

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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.