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Finding the Fourth Proportional to 449,487.48, 674,139.96 and 165,080.28

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Solution

The fourth proportional to 449,487.48, 674,139.96 and 165,080.28 is: 247,586.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,487.48 : 674,139.96 = 165,080.28 : x
  2. Step 2: Convert to fraction form
    449,487.48/674,139.96 = 165,080.28/x
  3. Step 3: Cross multiply
    449,487.48x = 674,139.96 × 165,080.28
  4. Step 4: Simplify right side
    449,487.48x = 111,287,213,355.99
  5. Step 5: Solve for x
    x = 111,287,213,355.99/449,487.48
  6. Step 6: Final answer
    x = 247,586.90

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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.