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Finding the Fourth Proportional to 69,659.41, 104,489.13 and 28,077.25

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Solution

The fourth proportional to 69,659.41, 104,489.13 and 28,077.25 is: 42,115.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,659.41 : 104,489.13 = 28,077.25 : x
  2. Step 2: Convert to fraction form
    69,659.41/104,489.13 = 28,077.25/x
  3. Step 3: Cross multiply
    69,659.41x = 104,489.13 × 28,077.25
  4. Step 4: Simplify right side
    69,659.41x = 2,933,767,425.29
  5. Step 5: Solve for x
    x = 2,933,767,425.29/69,659.41
  6. Step 6: Final answer
    x = 42,115.88

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Similar ratio
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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.