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Finding the Fourth Proportional to 244, 366.18 and 115.78

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Solution

The fourth proportional to 244, 366.18 and 115.78 is: 173.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    244 : 366.18 = 115.78 : x
  2. Step 2: Convert to fraction form
    244/366.18 = 115.78/x
  3. Step 3: Cross multiply
    244x = 366.18 × 115.78
  4. Step 4: Simplify right side
    244x = 42,396.32
  5. Step 5: Solve for x
    x = 42,396.32/244
  6. Step 6: Final answer
    x = 173.76

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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.