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Finding the Fourth Proportional to 68,805.75, 95,016.04 and 65,077.83

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Solution

The fourth proportional to 68,805.75, 95,016.04 and 65,077.83 is: 89,868.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,805.75 : 95,016.04 = 65,077.83 : x
  2. Step 2: Convert to fraction form
    68,805.75/95,016.04 = 65,077.83/x
  3. Step 3: Cross multiply
    68,805.75x = 95,016.04 × 65,077.83
  4. Step 4: Simplify right side
    68,805.75x = 6,183,437,535.70
  5. Step 5: Solve for x
    x = 6,183,437,535.70/68,805.75
  6. Step 6: Final answer
    x = 89,868.03

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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.