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Finding the Fourth Proportional to 184.92, 277.44 and 111.78

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Solution

The fourth proportional to 184.92, 277.44 and 111.78 is: 167.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.92 : 277.44 = 111.78 : x
  2. Step 2: Convert to fraction form
    184.92/277.44 = 111.78/x
  3. Step 3: Cross multiply
    184.92x = 277.44 × 111.78
  4. Step 4: Simplify right side
    184.92x = 31,012.24
  5. Step 5: Solve for x
    x = 31,012.24/184.92
  6. Step 6: Final answer
    x = 167.71

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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.