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Finding the Fourth Proportional to 85,092.48, 127,716.48 and 65,306.88

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Solution

The fourth proportional to 85,092.48, 127,716.48 and 65,306.88 is: 98,020.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,092.48 : 127,716.48 = 65,306.88 : x
  2. Step 2: Convert to fraction form
    85,092.48/127,716.48 = 65,306.88/x
  3. Step 3: Cross multiply
    85,092.48x = 127,716.48 × 65,306.88
  4. Step 4: Simplify right side
    85,092.48x = 8,340,764,833.38
  5. Step 5: Solve for x
    x = 8,340,764,833.38/85,092.48
  6. Step 6: Final answer
    x = 98,020.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.