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Finding the Fourth Proportional to 107.48, 160.92 and 93.92

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Solution

The fourth proportional to 107.48, 160.92 and 93.92 is: 140.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    107.48 : 160.92 = 93.92 : x
  2. Step 2: Convert to fraction form
    107.48/160.92 = 93.92/x
  3. Step 3: Cross multiply
    107.48x = 160.92 × 93.92
  4. Step 4: Simplify right side
    107.48x = 15,113.61
  5. Step 5: Solve for x
    x = 15,113.61/107.48
  6. Step 6: Final answer
    x = 140.62

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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.