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Finding the Fourth Proportional to 116.88, 175.36 and 93.92

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Solution

The fourth proportional to 116.88, 175.36 and 93.92 is: 140.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.88 : 175.36 = 93.92 : x
  2. Step 2: Convert to fraction form
    116.88/175.36 = 93.92/x
  3. Step 3: Cross multiply
    116.88x = 175.36 × 93.92
  4. Step 4: Simplify right side
    116.88x = 16,469.81
  5. Step 5: Solve for x
    x = 16,469.81/116.88
  6. Step 6: Final answer
    x = 140.91

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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.