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Finding the Fourth Proportional to 192,494.72, 288,604.92 and 74,066.24

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Solution

The fourth proportional to 192,494.72, 288,604.92 and 74,066.24 is: 111,046.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,494.72 : 288,604.92 = 74,066.24 : x
  2. Step 2: Convert to fraction form
    192,494.72/288,604.92 = 74,066.24/x
  3. Step 3: Cross multiply
    192,494.72x = 288,604.92 × 74,066.24
  4. Step 4: Simplify right side
    192,494.72x = 21,375,881,269.90
  5. Step 5: Solve for x
    x = 21,375,881,269.90/192,494.72
  6. Step 6: Final answer
    x = 111,046.58

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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.