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Finding the Fourth Proportional to 168,043.60, 231,891.42 and 104,380.12

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Solution

The fourth proportional to 168,043.60, 231,891.42 and 104,380.12 is: 144,039.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,043.60 : 231,891.42 = 104,380.12 : x
  2. Step 2: Convert to fraction form
    168,043.60/231,891.42 = 104,380.12/x
  3. Step 3: Cross multiply
    168,043.60x = 231,891.42 × 104,380.12
  4. Step 4: Simplify right side
    168,043.60x = 24,204,854,246.57
  5. Step 5: Solve for x
    x = 24,204,854,246.57/168,043.60
  6. Step 6: Final answer
    x = 144,039.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.