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Finding the Fourth Proportional to 117.44, 175.78 and 110.96

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Solution

The fourth proportional to 117.44, 175.78 and 110.96 is: 166.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.44 : 175.78 = 110.96 : x
  2. Step 2: Convert to fraction form
    117.44/175.78 = 110.96/x
  3. Step 3: Cross multiply
    117.44x = 175.78 × 110.96
  4. Step 4: Simplify right side
    117.44x = 19,504.55
  5. Step 5: Solve for x
    x = 19,504.55/117.44
  6. Step 6: Final answer
    x = 166.08

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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.