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Finding the Fourth Proportional to 167,874.30, 231,668.88 and 91,395.71

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Solution

The fourth proportional to 167,874.30, 231,668.88 and 91,395.71 is: 126,127.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,874.30 : 231,668.88 = 91,395.71 : x
  2. Step 2: Convert to fraction form
    167,874.30/231,668.88 = 91,395.71/x
  3. Step 3: Cross multiply
    167,874.30x = 231,668.88 × 91,395.71
  4. Step 4: Simplify right side
    167,874.30x = 21,173,541,654.29
  5. Step 5: Solve for x
    x = 21,173,541,654.29/167,874.30
  6. Step 6: Final answer
    x = 126,127.36

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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.