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Finding the Fourth Proportional to 372,349.44, 558,524.19 and 172,643.55

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Solution

The fourth proportional to 372,349.44, 558,524.19 and 172,643.55 is: 258,965.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,349.44 : 558,524.19 = 172,643.55 : x
  2. Step 2: Convert to fraction form
    372,349.44/558,524.19 = 172,643.55/x
  3. Step 3: Cross multiply
    372,349.44x = 558,524.19 × 172,643.55
  4. Step 4: Simplify right side
    372,349.44x = 96,425,598,922.47
  5. Step 5: Solve for x
    x = 96,425,598,922.47/372,349.44
  6. Step 6: Final answer
    x = 258,965.34

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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.