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Finding the Fourth Proportional to 184.43, 276.21 and 112.16

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Solution

The fourth proportional to 184.43, 276.21 and 112.16 is: 167.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.43 : 276.21 = 112.16 : x
  2. Step 2: Convert to fraction form
    184.43/276.21 = 112.16/x
  3. Step 3: Cross multiply
    184.43x = 276.21 × 112.16
  4. Step 4: Simplify right side
    184.43x = 30,978.33
  5. Step 5: Solve for x
    x = 30,978.33/184.43
  6. Step 6: Final answer
    x = 167.97

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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.