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Finding the Fourth Proportional to 100,910.60, 151,301.10 and 41,769.80

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Solution

The fourth proportional to 100,910.60, 151,301.10 and 41,769.80 is: 62,627.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,910.60 : 151,301.10 = 41,769.80 : x
  2. Step 2: Convert to fraction form
    100,910.60/151,301.10 = 41,769.80/x
  3. Step 3: Cross multiply
    100,910.60x = 151,301.10 × 41,769.80
  4. Step 4: Simplify right side
    100,910.60x = 6,319,816,686.78
  5. Step 5: Solve for x
    x = 6,319,816,686.78/100,910.60
  6. Step 6: Final answer
    x = 62,627.88

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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.