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Finding the Fourth Proportional to 73,489.12, 101,264.88 and 69,519.28

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Solution

The fourth proportional to 73,489.12, 101,264.88 and 69,519.28 is: 95,794.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,489.12 : 101,264.88 = 69,519.28 : x
  2. Step 2: Convert to fraction form
    73,489.12/101,264.88 = 69,519.28/x
  3. Step 3: Cross multiply
    73,489.12x = 101,264.88 × 69,519.28
  4. Step 4: Simplify right side
    73,489.12x = 7,039,861,546.89
  5. Step 5: Solve for x
    x = 7,039,861,546.89/73,489.12
  6. Step 6: Final answer
    x = 95,794.61

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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.