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Finding the Fourth Proportional to 172,543.91, 238,115.97 and 93,967.16

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Solution

The fourth proportional to 172,543.91, 238,115.97 and 93,967.16 is: 129,677.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,543.91 : 238,115.97 = 93,967.16 : x
  2. Step 2: Convert to fraction form
    172,543.91/238,115.97 = 93,967.16/x
  3. Step 3: Cross multiply
    172,543.91x = 238,115.97 × 93,967.16
  4. Step 4: Simplify right side
    172,543.91x = 22,375,080,260.97
  5. Step 5: Solve for x
    x = 22,375,080,260.97/172,543.91
  6. Step 6: Final answer
    x = 129,677.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.