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Finding the Fourth Proportional to 132.24, 182.43 and 88.59

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Solution

The fourth proportional to 132.24, 182.43 and 88.59 is: 122.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.24 : 182.43 = 88.59 : x
  2. Step 2: Convert to fraction form
    132.24/182.43 = 88.59/x
  3. Step 3: Cross multiply
    132.24x = 182.43 × 88.59
  4. Step 4: Simplify right side
    132.24x = 16,161.47
  5. Step 5: Solve for x
    x = 16,161.47/132.24
  6. Step 6: Final answer
    x = 122.21

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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.