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Finding the Fourth Proportional to 167,630.54, 231,330.42 and 91,149.57

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Solution

The fourth proportional to 167,630.54, 231,330.42 and 91,149.57 is: 125,786.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,630.54 : 231,330.42 = 91,149.57 : x
  2. Step 2: Convert to fraction form
    167,630.54/231,330.42 = 91,149.57/x
  3. Step 3: Cross multiply
    167,630.54x = 231,330.42 × 91,149.57
  4. Step 4: Simplify right side
    167,630.54x = 21,085,668,310.92
  5. Step 5: Solve for x
    x = 21,085,668,310.92/167,630.54
  6. Step 6: Final answer
    x = 125,786.56

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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.