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Finding the Fourth Proportional to 127,375.87, 191,063.80 and 57,173.17

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Solution

The fourth proportional to 127,375.87, 191,063.80 and 57,173.17 is: 85,759.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,375.87 : 191,063.80 = 57,173.17 : x
  2. Step 2: Convert to fraction form
    127,375.87/191,063.80 = 57,173.17/x
  3. Step 3: Cross multiply
    127,375.87x = 191,063.80 × 57,173.17
  4. Step 4: Simplify right side
    127,375.87x = 10,923,722,497.65
  5. Step 5: Solve for x
    x = 10,923,722,497.65/127,375.87
  6. Step 6: Final answer
    x = 85,759.75

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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.