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Finding the Fourth Proportional to 184.14, 276.21 and 68.55

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Solution

The fourth proportional to 184.14, 276.21 and 68.55 is: 102.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.14 : 276.21 = 68.55 : x
  2. Step 2: Convert to fraction form
    184.14/276.21 = 68.55/x
  3. Step 3: Cross multiply
    184.14x = 276.21 × 68.55
  4. Step 4: Simplify right side
    184.14x = 18,934.20
  5. Step 5: Solve for x
    x = 18,934.20/184.14
  6. Step 6: Final answer
    x = 102.83

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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.