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Finding the Fourth Proportional to 92,155.28, 127,174.50 and 51,869.61

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Solution

The fourth proportional to 92,155.28, 127,174.50 and 51,869.61 is: 71,580.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,155.28 : 127,174.50 = 51,869.61 : x
  2. Step 2: Convert to fraction form
    92,155.28/127,174.50 = 51,869.61/x
  3. Step 3: Cross multiply
    92,155.28x = 127,174.50 × 51,869.61
  4. Step 4: Simplify right side
    92,155.28x = 6,596,491,716.95
  5. Step 5: Solve for x
    x = 6,596,491,716.95/92,155.28
  6. Step 6: Final answer
    x = 71,580.19

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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.