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Finding the Fourth Proportional to 221,701.20, 332,551.80 and 192,832.80

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Solution

The fourth proportional to 221,701.20, 332,551.80 and 192,832.80 is: 289,249.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,701.20 : 332,551.80 = 192,832.80 : x
  2. Step 2: Convert to fraction form
    221,701.20/332,551.80 = 192,832.80/x
  3. Step 3: Cross multiply
    221,701.20x = 332,551.80 × 192,832.80
  4. Step 4: Simplify right side
    221,701.20x = 64,126,894,739.04
  5. Step 5: Solve for x
    x = 64,126,894,739.04/221,701.20
  6. Step 6: Final answer
    x = 289,249.20

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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.