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Finding the Fourth Proportional to 92,149.32, 127,170.15 and 51,865.69

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Solution

The fourth proportional to 92,149.32, 127,170.15 and 51,865.69 is: 71,576.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,149.32 : 127,170.15 = 51,865.69 : x
  2. Step 2: Convert to fraction form
    92,149.32/127,170.15 = 51,865.69/x
  3. Step 3: Cross multiply
    92,149.32x = 127,170.15 × 51,865.69
  4. Step 4: Simplify right side
    92,149.32x = 6,595,766,681.97
  5. Step 5: Solve for x
    x = 6,595,766,681.97/92,149.32
  6. Step 6: Final answer
    x = 71,576.95

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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.