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Finding the Fourth Proportional to 449,406.26, 674,102.55 and 133,863.20

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Solution

The fourth proportional to 449,406.26, 674,102.55 and 133,863.20 is: 200,792.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,406.26 : 674,102.55 = 133,863.20 : x
  2. Step 2: Convert to fraction form
    449,406.26/674,102.55 = 133,863.20/x
  3. Step 3: Cross multiply
    449,406.26x = 674,102.55 × 133,863.20
  4. Step 4: Simplify right side
    449,406.26x = 90,237,524,471.16
  5. Step 5: Solve for x
    x = 90,237,524,471.16/449,406.26
  6. Step 6: Final answer
    x = 200,792.76

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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.