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Finding the Fourth Proportional to 372,572.90, 558,419.31 and 159,278.43

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Solution

The fourth proportional to 372,572.90, 558,419.31 and 159,278.43 is: 238,729.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,572.90 : 558,419.31 = 159,278.43 : x
  2. Step 2: Convert to fraction form
    372,572.90/558,419.31 = 159,278.43/x
  3. Step 3: Cross multiply
    372,572.90x = 558,419.31 × 159,278.43
  4. Step 4: Simplify right side
    372,572.90x = 88,944,150,978.48
  5. Step 5: Solve for x
    x = 88,944,150,978.48/372,572.90
  6. Step 6: Final answer
    x = 238,729.53

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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.