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Finding the Fourth Proportional to 449,481.48, 674,130.96 and 165,074.28

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Solution

The fourth proportional to 449,481.48, 674,130.96 and 165,074.28 is: 247,577.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,481.48 : 674,130.96 = 165,074.28 : x
  2. Step 2: Convert to fraction form
    449,481.48/674,130.96 = 165,074.28/x
  3. Step 3: Cross multiply
    449,481.48x = 674,130.96 × 165,074.28
  4. Step 4: Simplify right side
    449,481.48x = 111,281,682,847.71
  5. Step 5: Solve for x
    x = 111,281,682,847.71/449,481.48
  6. Step 6: Final answer
    x = 247,577.90

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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.