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Finding the Fourth Proportional to 372,508.97, 558,846.75 and 135,851.66

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Solution

The fourth proportional to 372,508.97, 558,846.75 and 135,851.66 is: 203,807.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,508.97 : 558,846.75 = 135,851.66 : x
  2. Step 2: Convert to fraction form
    372,508.97/558,846.75 = 135,851.66/x
  3. Step 3: Cross multiply
    372,508.97x = 558,846.75 × 135,851.66
  4. Step 4: Simplify right side
    372,508.97x = 75,920,255,878.87
  5. Step 5: Solve for x
    x = 75,920,255,878.87/372,508.97
  6. Step 6: Final answer
    x = 203,807.86

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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.