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Finding the Fourth Proportional to 165.48, 248.04 and 110.66

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Solution

The fourth proportional to 165.48, 248.04 and 110.66 is: 165.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    165.48 : 248.04 = 110.66 : x
  2. Step 2: Convert to fraction form
    165.48/248.04 = 110.66/x
  3. Step 3: Cross multiply
    165.48x = 248.04 × 110.66
  4. Step 4: Simplify right side
    165.48x = 27,446.87
  5. Step 5: Solve for x
    x = 27,446.87/165.48
  6. Step 6: Final answer
    x = 165.86

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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.