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Finding the Fourth Proportional to 192,279.60, 288,469.80 and 73,954.80

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Solution

The fourth proportional to 192,279.60, 288,469.80 and 73,954.80 is: 110,951.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,279.60 : 288,469.80 = 73,954.80 : x
  2. Step 2: Convert to fraction form
    192,279.60/288,469.80 = 73,954.80/x
  3. Step 3: Cross multiply
    192,279.60x = 288,469.80 × 73,954.80
  4. Step 4: Simplify right side
    192,279.60x = 21,333,726,365.04
  5. Step 5: Solve for x
    x = 21,333,726,365.04/192,279.60
  6. Step 6: Final answer
    x = 110,951.58

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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.