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Finding the Fourth Proportional to 119,635.67, 165,090.48 and 65,926.19

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Solution

The fourth proportional to 119,635.67, 165,090.48 and 65,926.19 is: 90,974.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,635.67 : 165,090.48 = 65,926.19 : x
  2. Step 2: Convert to fraction form
    119,635.67/165,090.48 = 65,926.19/x
  3. Step 3: Cross multiply
    119,635.67x = 165,090.48 × 65,926.19
  4. Step 4: Simplify right side
    119,635.67x = 10,883,786,517.17
  5. Step 5: Solve for x
    x = 10,883,786,517.17/119,635.67
  6. Step 6: Final answer
    x = 90,974.43

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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.