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Finding the Fourth Proportional to 372,553.22, 558,654.87 and 172,748.90

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Solution

The fourth proportional to 372,553.22, 558,654.87 and 172,748.90 is: 259,042.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,553.22 : 558,654.87 = 172,748.90 : x
  2. Step 2: Convert to fraction form
    372,553.22/558,654.87 = 172,748.90/x
  3. Step 3: Cross multiply
    372,553.22x = 558,654.87 × 172,748.90
  4. Step 4: Simplify right side
    372,553.22x = 96,507,016,316.59
  5. Step 5: Solve for x
    x = 96,507,016,316.59/372,553.22
  6. Step 6: Final answer
    x = 259,042.23

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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.