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Finding the Fourth Proportional to 303,286.22, 454,889.80 and 90,049.85

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Solution

The fourth proportional to 303,286.22, 454,889.80 and 90,049.85 is: 135,063.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,286.22 : 454,889.80 = 90,049.85 : x
  2. Step 2: Convert to fraction form
    303,286.22/454,889.80 = 90,049.85/x
  3. Step 3: Cross multiply
    303,286.22x = 454,889.80 × 90,049.85
  4. Step 4: Simplify right side
    303,286.22x = 40,962,757,800.48
  5. Step 5: Solve for x
    x = 40,962,757,800.48/303,286.22
  6. Step 6: Final answer
    x = 135,063.04

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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.