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Finding the Fourth Proportional to 169.52, 233.82 and 104.06

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Solution

The fourth proportional to 169.52, 233.82 and 104.06 is: 143.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.52 : 233.82 = 104.06 : x
  2. Step 2: Convert to fraction form
    169.52/233.82 = 104.06/x
  3. Step 3: Cross multiply
    169.52x = 233.82 × 104.06
  4. Step 4: Simplify right side
    169.52x = 24,330.14
  5. Step 5: Solve for x
    x = 24,330.14/169.52
  6. Step 6: Final answer
    x = 143.52

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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.