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Finding the Fourth Proportional to 372,067.50, 558,349.42 and 135,410.11

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Solution

The fourth proportional to 372,067.50, 558,349.42 and 135,410.11 is: 203,205.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,067.50 : 558,349.42 = 135,410.11 : x
  2. Step 2: Convert to fraction form
    372,067.50/558,349.42 = 135,410.11/x
  3. Step 3: Cross multiply
    372,067.50x = 558,349.42 × 135,410.11
  4. Step 4: Simplify right side
    372,067.50x = 75,606,156,380.64
  5. Step 5: Solve for x
    x = 75,606,156,380.64/372,067.50
  6. Step 6: Final answer
    x = 203,205.48

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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.