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Finding the Fourth Proportional to 184.26, 276.46 and 74.64

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Solution

The fourth proportional to 184.26, 276.46 and 74.64 is: 111.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.26 : 276.46 = 74.64 : x
  2. Step 2: Convert to fraction form
    184.26/276.46 = 74.64/x
  3. Step 3: Cross multiply
    184.26x = 276.46 × 74.64
  4. Step 4: Simplify right side
    184.26x = 20,634.69
  5. Step 5: Solve for x
    x = 20,634.69/184.26
  6. Step 6: Final answer
    x = 111.99

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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.