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Finding the Fourth Proportional to 192,604.20, 288,791.10 and 99,292.20

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Solution

The fourth proportional to 192,604.20, 288,791.10 and 99,292.20 is: 148,878.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,604.20 : 288,791.10 = 99,292.20 : x
  2. Step 2: Convert to fraction form
    192,604.20/288,791.10 = 99,292.20/x
  3. Step 3: Cross multiply
    192,604.20x = 288,791.10 × 99,292.20
  4. Step 4: Simplify right side
    192,604.20x = 28,674,703,659.42
  5. Step 5: Solve for x
    x = 28,674,703,659.42/192,604.20
  6. Step 6: Final answer
    x = 148,878.91

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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.