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Finding the Fourth Proportional to 276,604.20, 414,906.30 and 89,634.60

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Solution

The fourth proportional to 276,604.20, 414,906.30 and 89,634.60 is: 134,451.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,604.20 : 414,906.30 = 89,634.60 : x
  2. Step 2: Convert to fraction form
    276,604.20/414,906.30 = 89,634.60/x
  3. Step 3: Cross multiply
    276,604.20x = 414,906.30 × 89,634.60
  4. Step 4: Simplify right side
    276,604.20x = 37,189,960,237.98
  5. Step 5: Solve for x
    x = 37,189,960,237.98/276,604.20
  6. Step 6: Final answer
    x = 134,451.90

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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.