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Finding the Fourth Proportional to 110,512.80, 165,769.20 and 95,479.20

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Solution

The fourth proportional to 110,512.80, 165,769.20 and 95,479.20 is: 143,218.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,512.80 : 165,769.20 = 95,479.20 : x
  2. Step 2: Convert to fraction form
    110,512.80/165,769.20 = 95,479.20/x
  3. Step 3: Cross multiply
    110,512.80x = 165,769.20 × 95,479.20
  4. Step 4: Simplify right side
    110,512.80x = 15,827,510,600.64
  5. Step 5: Solve for x
    x = 15,827,510,600.64/110,512.80
  6. Step 6: Final answer
    x = 143,218.80

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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.