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Finding the Fourth Proportional to 170.46, 235.24 and 96.76

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Solution

The fourth proportional to 170.46, 235.24 and 96.76 is: 133.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.46 : 235.24 = 96.76 : x
  2. Step 2: Convert to fraction form
    170.46/235.24 = 96.76/x
  3. Step 3: Cross multiply
    170.46x = 235.24 × 96.76
  4. Step 4: Simplify right side
    170.46x = 22,761.82
  5. Step 5: Solve for x
    x = 22,761.82/170.46
  6. Step 6: Final answer
    x = 133.53

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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.