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Finding the Fourth Proportional to 119,892.36, 165,451.47 and 66,177.39

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Solution

The fourth proportional to 119,892.36, 165,451.47 and 66,177.39 is: 91,324.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,892.36 : 165,451.47 = 66,177.39 : x
  2. Step 2: Convert to fraction form
    119,892.36/165,451.47 = 66,177.39/x
  3. Step 3: Cross multiply
    119,892.36x = 165,451.47 × 66,177.39
  4. Step 4: Simplify right side
    119,892.36x = 10,949,146,456.26
  5. Step 5: Solve for x
    x = 10,949,146,456.26/119,892.36
  6. Step 6: Final answer
    x = 91,324.81

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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.