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Finding the Fourth Proportional to 229.67, 316.49 and 164.06

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Solution

The fourth proportional to 229.67, 316.49 and 164.06 is: 226.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    229.67 : 316.49 = 164.06 : x
  2. Step 2: Convert to fraction form
    229.67/316.49 = 164.06/x
  3. Step 3: Cross multiply
    229.67x = 316.49 × 164.06
  4. Step 4: Simplify right side
    229.67x = 51,920.95
  5. Step 5: Solve for x
    x = 51,920.95/229.67
  6. Step 6: Final answer
    x = 226.07

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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.