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Finding the Fourth Proportional to 117.33, 175.76 and 110.67

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Solution

The fourth proportional to 117.33, 175.76 and 110.67 is: 165.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.33 : 175.76 = 110.67 : x
  2. Step 2: Convert to fraction form
    117.33/175.76 = 110.67/x
  3. Step 3: Cross multiply
    117.33x = 175.76 × 110.67
  4. Step 4: Simplify right side
    117.33x = 19,450.81
  5. Step 5: Solve for x
    x = 19,450.81/117.33
  6. Step 6: Final answer
    x = 165.78

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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.