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Finding the Fourth Proportional to 183.22, 274.88 and 61.56

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Solution

The fourth proportional to 183.22, 274.88 and 61.56 is: 92.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.22 : 274.88 = 61.56 : x
  2. Step 2: Convert to fraction form
    183.22/274.88 = 61.56/x
  3. Step 3: Cross multiply
    183.22x = 274.88 × 61.56
  4. Step 4: Simplify right side
    183.22x = 16,921.61
  5. Step 5: Solve for x
    x = 16,921.61/183.22
  6. Step 6: Final answer
    x = 92.36

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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.