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Finding the Fourth Proportional to 119,666.13, 165,136.01 and 65,951.13

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Solution

The fourth proportional to 119,666.13, 165,136.01 and 65,951.13 is: 91,010.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,666.13 : 165,136.01 = 65,951.13 : x
  2. Step 2: Convert to fraction form
    119,666.13/165,136.01 = 65,951.13/x
  3. Step 3: Cross multiply
    119,666.13x = 165,136.01 × 65,951.13
  4. Step 4: Simplify right side
    119,666.13x = 10,890,905,514.18
  5. Step 5: Solve for x
    x = 10,890,905,514.18/119,666.13
  6. Step 6: Final answer
    x = 91,010.76

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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.