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Finding the Fourth Proportional to 243.52, 336 and 160.60

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Solution

The fourth proportional to 243.52, 336 and 160.60 is: 221.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.52 : 336 = 160.60 : x
  2. Step 2: Convert to fraction form
    243.52/336 = 160.60/x
  3. Step 3: Cross multiply
    243.52x = 336 × 160.60
  4. Step 4: Simplify right side
    243.52x = 53,961.60
  5. Step 5: Solve for x
    x = 53,961.60/243.52
  6. Step 6: Final answer
    x = 221.59

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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.