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Finding the Fourth Proportional to 372,540.65, 558,894.31 and 135,883.33

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Solution

The fourth proportional to 372,540.65, 558,894.31 and 135,883.33 is: 203,855.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,540.65 : 558,894.31 = 135,883.33 : x
  2. Step 2: Convert to fraction form
    372,540.65/558,894.31 = 135,883.33/x
  3. Step 3: Cross multiply
    372,540.65x = 558,894.31 × 135,883.33
  4. Step 4: Simplify right side
    372,540.65x = 75,944,419,960.85
  5. Step 5: Solve for x
    x = 75,944,419,960.85/372,540.65
  6. Step 6: Final answer
    x = 203,855.39

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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.