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Finding the Fourth Proportional to 372,346.96, 558,520.42 and 172,641.04

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Solution

The fourth proportional to 372,346.96, 558,520.42 and 172,641.04 is: 258,961.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,346.96 : 558,520.42 = 172,641.04 : x
  2. Step 2: Convert to fraction form
    372,346.96/558,520.42 = 172,641.04/x
  3. Step 3: Cross multiply
    372,346.96x = 558,520.42 × 172,641.04
  4. Step 4: Simplify right side
    372,346.96x = 96,423,546,170.04
  5. Step 5: Solve for x
    x = 96,423,546,170.04/372,346.96
  6. Step 6: Final answer
    x = 258,961.55

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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.