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Finding the Fourth Proportional to 332,218.80, 498,401.10 and 163,819.80

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Solution

The fourth proportional to 332,218.80, 498,401.10 and 163,819.80 is: 245,765.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,218.80 : 498,401.10 = 163,819.80 : x
  2. Step 2: Convert to fraction form
    332,218.80/498,401.10 = 163,819.80/x
  3. Step 3: Cross multiply
    332,218.80x = 498,401.10 × 163,819.80
  4. Step 4: Simplify right side
    332,218.80x = 81,647,968,521.78
  5. Step 5: Solve for x
    x = 81,647,968,521.78/332,218.80
  6. Step 6: Final answer
    x = 245,765.65

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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.