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Finding the Fourth Proportional to 372,432.40, 558,704.19 and 172,772.97

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Solution

The fourth proportional to 372,432.40, 558,704.19 and 172,772.97 is: 259,185.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,432.40 : 558,704.19 = 172,772.97 : x
  2. Step 2: Convert to fraction form
    372,432.40/558,704.19 = 172,772.97/x
  3. Step 3: Cross multiply
    372,432.40x = 558,704.19 × 172,772.97
  4. Step 4: Simplify right side
    372,432.40x = 96,528,983,654.50
  5. Step 5: Solve for x
    x = 96,528,983,654.50/372,432.40
  6. Step 6: Final answer
    x = 259,185.25

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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.