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Finding the Fourth Proportional to 449,660.80, 674,475.60 and 112,704.40

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Solution

The fourth proportional to 449,660.80, 674,475.60 and 112,704.40 is: 169,052.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,660.80 : 674,475.60 = 112,704.40 : x
  2. Step 2: Convert to fraction form
    449,660.80/674,475.60 = 112,704.40/x
  3. Step 3: Cross multiply
    449,660.80x = 674,475.60 × 112,704.40
  4. Step 4: Simplify right side
    449,660.80x = 76,016,367,812.64
  5. Step 5: Solve for x
    x = 76,016,367,812.64/449,660.80
  6. Step 6: Final answer
    x = 169,052.69

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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.