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Finding the Fourth Proportional to 276,508.75, 414,340.60 and 186,217.60

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Solution

The fourth proportional to 276,508.75, 414,340.60 and 186,217.60 is: 279,041.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,508.75 : 414,340.60 = 186,217.60 : x
  2. Step 2: Convert to fraction form
    276,508.75/414,340.60 = 186,217.60/x
  3. Step 3: Cross multiply
    276,508.75x = 414,340.60 × 186,217.60
  4. Step 4: Simplify right side
    276,508.75x = 77,157,512,114.56
  5. Step 5: Solve for x
    x = 77,157,512,114.56/276,508.75
  6. Step 6: Final answer
    x = 279,041.85

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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.