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Finding the Fourth Proportional to 184.25, 276.36 and 74.52

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Solution

The fourth proportional to 184.25, 276.36 and 74.52 is: 111.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.25 : 276.36 = 74.52 : x
  2. Step 2: Convert to fraction form
    184.25/276.36 = 74.52/x
  3. Step 3: Cross multiply
    184.25x = 276.36 × 74.52
  4. Step 4: Simplify right side
    184.25x = 20,595.10
  5. Step 5: Solve for x
    x = 20,595.10/184.25
  6. Step 6: Final answer
    x = 111.78

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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.