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Finding the Fourth Proportional to 119,892.96, 165,451.36 and 66,177.96

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Solution

The fourth proportional to 119,892.96, 165,451.36 and 66,177.96 is: 91,325.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,892.96 : 165,451.36 = 66,177.96 : x
  2. Step 2: Convert to fraction form
    119,892.96/165,451.36 = 66,177.96/x
  3. Step 3: Cross multiply
    119,892.96x = 165,451.36 × 66,177.96
  4. Step 4: Simplify right side
    119,892.96x = 10,949,233,752.89
  5. Step 5: Solve for x
    x = 10,949,233,752.89/119,892.96
  6. Step 6: Final answer
    x = 91,325.08

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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.