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Finding the Fourth Proportional to 84,951.76, 127,439.16 and 29,540.56

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Solution

The fourth proportional to 84,951.76, 127,439.16 and 29,540.56 is: 44,314.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,951.76 : 127,439.16 = 29,540.56 : x
  2. Step 2: Convert to fraction form
    84,951.76/127,439.16 = 29,540.56/x
  3. Step 3: Cross multiply
    84,951.76x = 127,439.16 × 29,540.56
  4. Step 4: Simplify right side
    84,951.76x = 3,764,624,152.33
  5. Step 5: Solve for x
    x = 3,764,624,152.33/84,951.76
  6. Step 6: Final answer
    x = 44,314.85

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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.