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Finding the Fourth Proportional to 123.96, 185.94 and 110.46

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Solution

The fourth proportional to 123.96, 185.94 and 110.46 is: 165.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    123.96 : 185.94 = 110.46 : x
  2. Step 2: Convert to fraction form
    123.96/185.94 = 110.46/x
  3. Step 3: Cross multiply
    123.96x = 185.94 × 110.46
  4. Step 4: Simplify right side
    123.96x = 20,538.93
  5. Step 5: Solve for x
    x = 20,538.93/123.96
  6. Step 6: Final answer
    x = 165.69

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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.