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Finding the Fourth Proportional to 127,195.92, 190,797.96 and 63,981.52

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Solution

The fourth proportional to 127,195.92, 190,797.96 and 63,981.52 is: 95,974.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,195.92 : 190,797.96 = 63,981.52 : x
  2. Step 2: Convert to fraction form
    127,195.92/190,797.96 = 63,981.52/x
  3. Step 3: Cross multiply
    127,195.92x = 190,797.96 × 63,981.52
  4. Step 4: Simplify right side
    127,195.92x = 12,207,543,493.70
  5. Step 5: Solve for x
    x = 12,207,543,493.70/127,195.92
  6. Step 6: Final answer
    x = 95,974.33

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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.