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Finding the Fourth Proportional to 119,699.35, 165,186.26 and 65,986.29

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Solution

The fourth proportional to 119,699.35, 165,186.26 and 65,986.29 is: 91,061.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,699.35 : 165,186.26 = 65,986.29 : x
  2. Step 2: Convert to fraction form
    119,699.35/165,186.26 = 65,986.29/x
  3. Step 3: Cross multiply
    119,699.35x = 165,186.26 × 65,986.29
  4. Step 4: Simplify right side
    119,699.35x = 10,900,028,456.38
  5. Step 5: Solve for x
    x = 10,900,028,456.38/119,699.35
  6. Step 6: Final answer
    x = 91,061.72

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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.