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Finding the Fourth Proportional to 119,983.62, 165,609.42 and 69,001.92

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Solution

The fourth proportional to 119,983.62, 165,609.42 and 69,001.92 is: 95,241.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,983.62 : 165,609.42 = 69,001.92 : x
  2. Step 2: Convert to fraction form
    119,983.62/165,609.42 = 69,001.92/x
  3. Step 3: Cross multiply
    119,983.62x = 165,609.42 × 69,001.92
  4. Step 4: Simplify right side
    119,983.62x = 11,427,367,950.09
  5. Step 5: Solve for x
    x = 11,427,367,950.09/119,983.62
  6. Step 6: Final answer
    x = 95,241.07

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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.