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Finding the Fourth Proportional to 372,544.70, 558,900.38 and 135,887.38

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Solution

The fourth proportional to 372,544.70, 558,900.38 and 135,887.38 is: 203,861.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,544.70 : 558,900.38 = 135,887.38 : x
  2. Step 2: Convert to fraction form
    372,544.70/558,900.38 = 135,887.38/x
  3. Step 3: Cross multiply
    372,544.70x = 558,900.38 × 135,887.38
  4. Step 4: Simplify right side
    372,544.70x = 75,947,508,319.20
  5. Step 5: Solve for x
    x = 75,947,508,319.20/372,544.70
  6. Step 6: Final answer
    x = 203,861.46

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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.