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Finding the Fourth Proportional to 326,957.10, 490,435.65 and 169,233.90

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Solution

The fourth proportional to 326,957.10, 490,435.65 and 169,233.90 is: 253,850.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,957.10 : 490,435.65 = 169,233.90 : x
  2. Step 2: Convert to fraction form
    326,957.10/490,435.65 = 169,233.90/x
  3. Step 3: Cross multiply
    326,957.10x = 490,435.65 × 169,233.90
  4. Step 4: Simplify right side
    326,957.10x = 82,998,337,748.54
  5. Step 5: Solve for x
    x = 82,998,337,748.54/326,957.10
  6. Step 6: Final answer
    x = 253,850.85

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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.