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Finding the Fourth Proportional to 167,897.48, 231,690.98 and 91,414.64

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Solution

The fourth proportional to 167,897.48, 231,690.98 and 91,414.64 is: 126,148.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,897.48 : 231,690.98 = 91,414.64 : x
  2. Step 2: Convert to fraction form
    167,897.48/231,690.98 = 91,414.64/x
  3. Step 3: Cross multiply
    167,897.48x = 231,690.98 × 91,414.64
  4. Step 4: Simplify right side
    167,897.48x = 21,179,948,335.71
  5. Step 5: Solve for x
    x = 21,179,948,335.71/167,897.48
  6. Step 6: Final answer
    x = 126,148.11

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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.