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Finding the Fourth Proportional to 83,735.43, 126,161.67 and 75,739.44

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Solution

The fourth proportional to 83,735.43, 126,161.67 and 75,739.44 is: 114,114.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,735.43 : 126,161.67 = 75,739.44 : x
  2. Step 2: Convert to fraction form
    83,735.43/126,161.67 = 75,739.44/x
  3. Step 3: Cross multiply
    83,735.43x = 126,161.67 × 75,739.44
  4. Step 4: Simplify right side
    83,735.43x = 9,555,414,235.26
  5. Step 5: Solve for x
    x = 9,555,414,235.26/83,735.43
  6. Step 6: Final answer
    x = 114,114.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.