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Finding the Fourth Proportional to 116,757.88, 161,126.05 and 66,456.88

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Solution

The fourth proportional to 116,757.88, 161,126.05 and 66,456.88 is: 91,710.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,757.88 : 161,126.05 = 66,456.88 : x
  2. Step 2: Convert to fraction form
    116,757.88/161,126.05 = 66,456.88/x
  3. Step 3: Cross multiply
    116,757.88x = 161,126.05 × 66,456.88
  4. Step 4: Simplify right side
    116,757.88x = 10,707,933,764.09
  5. Step 5: Solve for x
    x = 10,707,933,764.09/116,757.88
  6. Step 6: Final answer
    x = 91,710.59

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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.