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Finding the Fourth Proportional to 167.07, 230.54 and 104.07

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Solution

The fourth proportional to 167.07, 230.54 and 104.07 is: 143.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.07 : 230.54 = 104.07 : x
  2. Step 2: Convert to fraction form
    167.07/230.54 = 104.07/x
  3. Step 3: Cross multiply
    167.07x = 230.54 × 104.07
  4. Step 4: Simplify right side
    167.07x = 23,991.78
  5. Step 5: Solve for x
    x = 23,991.78/167.07
  6. Step 6: Final answer
    x = 143.60

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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.