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Finding the Fourth Proportional to 449,431.89, 674,149.68 and 112,471.62

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Solution

The fourth proportional to 449,431.89, 674,149.68 and 112,471.62 is: 168,707.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,431.89 : 674,149.68 = 112,471.62 : x
  2. Step 2: Convert to fraction form
    449,431.89/674,149.68 = 112,471.62/x
  3. Step 3: Cross multiply
    449,431.89x = 674,149.68 × 112,471.62
  4. Step 4: Simplify right side
    449,431.89x = 75,822,706,632.08
  5. Step 5: Solve for x
    x = 75,822,706,632.08/449,431.89
  6. Step 6: Final answer
    x = 168,707.89

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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.