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Finding the Fourth Proportional to 449,691.85, 674,803.41 and 165,581.87

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Solution

The fourth proportional to 449,691.85, 674,803.41 and 165,581.87 is: 248,470.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,691.85 : 674,803.41 = 165,581.87 : x
  2. Step 2: Convert to fraction form
    449,691.85/674,803.41 = 165,581.87/x
  3. Step 3: Cross multiply
    449,691.85x = 674,803.41 × 165,581.87
  4. Step 4: Simplify right side
    449,691.85x = 111,735,210,311.00
  5. Step 5: Solve for x
    x = 111,735,210,311.00/449,691.85
  6. Step 6: Final answer
    x = 248,470.61

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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.