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Finding the Fourth Proportional to 184.45, 276.42 and 111.23

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Solution

The fourth proportional to 184.45, 276.42 and 111.23 is: 166.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.45 : 276.42 = 111.23 : x
  2. Step 2: Convert to fraction form
    184.45/276.42 = 111.23/x
  3. Step 3: Cross multiply
    184.45x = 276.42 × 111.23
  4. Step 4: Simplify right side
    184.45x = 30,746.20
  5. Step 5: Solve for x
    x = 30,746.20/184.45
  6. Step 6: Final answer
    x = 166.69

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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.