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Finding the Fourth Proportional to 361,520.52, 541,919.88 and 124,712.16

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Solution

The fourth proportional to 361,520.52, 541,919.88 and 124,712.16 is: 186,943.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,520.52 : 541,919.88 = 124,712.16 : x
  2. Step 2: Convert to fraction form
    361,520.52/541,919.88 = 124,712.16/x
  3. Step 3: Cross multiply
    361,520.52x = 541,919.88 × 124,712.16
  4. Step 4: Simplify right side
    361,520.52x = 67,583,998,781.74
  5. Step 5: Solve for x
    x = 67,583,998,781.74/361,520.52
  6. Step 6: Final answer
    x = 186,943.74

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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.