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Finding the Fourth Proportional to 449,671.80, 674,429.94 and 169,191.48

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Solution

The fourth proportional to 449,671.80, 674,429.94 and 169,191.48 is: 253,757.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,671.80 : 674,429.94 = 169,191.48 : x
  2. Step 2: Convert to fraction form
    449,671.80/674,429.94 = 169,191.48/x
  3. Step 3: Cross multiply
    449,671.80x = 674,429.94 × 169,191.48
  4. Step 4: Simplify right side
    449,671.80x = 114,107,799,704.91
  5. Step 5: Solve for x
    x = 114,107,799,704.91/449,671.80
  6. Step 6: Final answer
    x = 253,757.96

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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.