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Finding the Fourth Proportional to 184.20, 276 and 75.92

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Solution

The fourth proportional to 184.20, 276 and 75.92 is: 113.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.20 : 276 = 75.92 : x
  2. Step 2: Convert to fraction form
    184.20/276 = 75.92/x
  3. Step 3: Cross multiply
    184.20x = 276 × 75.92
  4. Step 4: Simplify right side
    184.20x = 20,953.92
  5. Step 5: Solve for x
    x = 20,953.92/184.20
  6. Step 6: Final answer
    x = 113.76

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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.