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Finding the Fourth Proportional to 119,773.49, 165,288.20 and 66,059.96

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Solution

The fourth proportional to 119,773.49, 165,288.20 and 66,059.96 is: 91,163.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,773.49 : 165,288.20 = 66,059.96 : x
  2. Step 2: Convert to fraction form
    119,773.49/165,288.20 = 66,059.96/x
  3. Step 3: Cross multiply
    119,773.49x = 165,288.20 × 66,059.96
  4. Step 4: Simplify right side
    119,773.49x = 10,918,930,723.73
  5. Step 5: Solve for x
    x = 10,918,930,723.73/119,773.49
  6. Step 6: Final answer
    x = 91,163.17

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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.