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Finding the Fourth Proportional to 127,265.18, 190,939.28 and 60,696.65

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Solution

The fourth proportional to 127,265.18, 190,939.28 and 60,696.65 is: 91,064.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,265.18 : 190,939.28 = 60,696.65 : x
  2. Step 2: Convert to fraction form
    127,265.18/190,939.28 = 60,696.65/x
  3. Step 3: Cross multiply
    127,265.18x = 190,939.28 × 60,696.65
  4. Step 4: Simplify right side
    127,265.18x = 11,589,375,475.88
  5. Step 5: Solve for x
    x = 11,589,375,475.88/127,265.18
  6. Step 6: Final answer
    x = 91,064.78

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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.