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Finding the Fourth Proportional to 372,462.40, 558,836.96 and 172,884.80

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Solution

The fourth proportional to 372,462.40, 558,836.96 and 172,884.80 is: 259,393.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,462.40 : 558,836.96 = 172,884.80 : x
  2. Step 2: Convert to fraction form
    372,462.40/558,836.96 = 172,884.80/x
  3. Step 3: Cross multiply
    372,462.40x = 558,836.96 × 172,884.80
  4. Step 4: Simplify right side
    372,462.40x = 96,614,416,062.21
  5. Step 5: Solve for x
    x = 96,614,416,062.21/372,462.40
  6. Step 6: Final answer
    x = 259,393.74

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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.