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Finding the Fourth Proportional to 113.96, 170.74 and 62.46

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Solution

The fourth proportional to 113.96, 170.74 and 62.46 is: 93.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    113.96 : 170.74 = 62.46 : x
  2. Step 2: Convert to fraction form
    113.96/170.74 = 62.46/x
  3. Step 3: Cross multiply
    113.96x = 170.74 × 62.46
  4. Step 4: Simplify right side
    113.96x = 10,664.42
  5. Step 5: Solve for x
    x = 10,664.42/113.96
  6. Step 6: Final answer
    x = 93.58

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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.