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Finding the Fourth Proportional to 132.36, 182.69 and 83.24

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Solution

The fourth proportional to 132.36, 182.69 and 83.24 is: 114.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.36 : 182.69 = 83.24 : x
  2. Step 2: Convert to fraction form
    132.36/182.69 = 83.24/x
  3. Step 3: Cross multiply
    132.36x = 182.69 × 83.24
  4. Step 4: Simplify right side
    132.36x = 15,207.12
  5. Step 5: Solve for x
    x = 15,207.12/132.36
  6. Step 6: Final answer
    x = 114.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.