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Finding the Fourth Proportional to 167,937.80, 251,906.70 and 74,443.55

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Solution

The fourth proportional to 167,937.80, 251,906.70 and 74,443.55 is: 111,665.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,937.80 : 251,906.70 = 74,443.55 : x
  2. Step 2: Convert to fraction form
    167,937.80/251,906.70 = 74,443.55/x
  3. Step 3: Cross multiply
    167,937.80x = 251,906.70 × 74,443.55
  4. Step 4: Simplify right side
    167,937.80x = 18,752,829,016.79
  5. Step 5: Solve for x
    x = 18,752,829,016.79/167,937.80
  6. Step 6: Final answer
    x = 111,665.33

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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.