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Finding the Fourth Proportional to 165.97, 228.99 and 92.26

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Solution

The fourth proportional to 165.97, 228.99 and 92.26 is: 127.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    165.97 : 228.99 = 92.26 : x
  2. Step 2: Convert to fraction form
    165.97/228.99 = 92.26/x
  3. Step 3: Cross multiply
    165.97x = 228.99 × 92.26
  4. Step 4: Simplify right side
    165.97x = 21,126.62
  5. Step 5: Solve for x
    x = 21,126.62/165.97
  6. Step 6: Final answer
    x = 127.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.