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Finding the Fourth Proportional to 182.96, 274.58 and 74.82

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Solution

The fourth proportional to 182.96, 274.58 and 74.82 is: 112.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.96 : 274.58 = 74.82 : x
  2. Step 2: Convert to fraction form
    182.96/274.58 = 74.82/x
  3. Step 3: Cross multiply
    182.96x = 274.58 × 74.82
  4. Step 4: Simplify right side
    182.96x = 20,544.08
  5. Step 5: Solve for x
    x = 20,544.08/182.96
  6. Step 6: Final answer
    x = 112.29

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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.