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Finding the Fourth Proportional to 107,287.20, 160,959.60 and 95,680.80

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Solution

The fourth proportional to 107,287.20, 160,959.60 and 95,680.80 is: 143,546.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,287.20 : 160,959.60 = 95,680.80 : x
  2. Step 2: Convert to fraction form
    107,287.20/160,959.60 = 95,680.80/x
  3. Step 3: Cross multiply
    107,287.20x = 160,959.60 × 95,680.80
  4. Step 4: Simplify right side
    107,287.20x = 15,400,743,295.68
  5. Step 5: Solve for x
    x = 15,400,743,295.68/107,287.20
  6. Step 6: Final answer
    x = 143,546.88

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1.5x scale

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.