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Finding the Fourth Proportional to 402,604.80, 603,983.34 and 132,748.44

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Solution

The fourth proportional to 402,604.80, 603,983.34 and 132,748.44 is: 199,147.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,604.80 : 603,983.34 = 132,748.44 : x
  2. Step 2: Convert to fraction form
    402,604.80/603,983.34 = 132,748.44/x
  3. Step 3: Cross multiply
    402,604.80x = 603,983.34 × 132,748.44
  4. Step 4: Simplify right side
    402,604.80x = 80,177,846,170.99
  5. Step 5: Solve for x
    x = 80,177,846,170.99/402,604.80
  6. Step 6: Final answer
    x = 199,147.77

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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.