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Finding the Fourth Proportional to 164.39, 226.85 and 106.17

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Solution

The fourth proportional to 164.39, 226.85 and 106.17 is: 146.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.39 : 226.85 = 106.17 : x
  2. Step 2: Convert to fraction form
    164.39/226.85 = 106.17/x
  3. Step 3: Cross multiply
    164.39x = 226.85 × 106.17
  4. Step 4: Simplify right side
    164.39x = 24,083.28
  5. Step 5: Solve for x
    x = 24,083.28/164.39
  6. Step 6: Final answer
    x = 146.51

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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.