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Finding the Fourth Proportional to 69,082.64, 95,262.72 and 65,063.60

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Solution

The fourth proportional to 69,082.64, 95,262.72 and 65,063.60 is: 89,720.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,082.64 : 95,262.72 = 65,063.60 : x
  2. Step 2: Convert to fraction form
    69,082.64/95,262.72 = 65,063.60/x
  3. Step 3: Cross multiply
    69,082.64x = 95,262.72 × 65,063.60
  4. Step 4: Simplify right side
    69,082.64x = 6,198,135,508.99
  5. Step 5: Solve for x
    x = 6,198,135,508.99/69,082.64
  6. Step 6: Final answer
    x = 89,720.59

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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.