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Finding the Fourth Proportional to 263, 362.98 and 159.56

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Solution

The fourth proportional to 263, 362.98 and 159.56 is: 220.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    263 : 362.98 = 159.56 : x
  2. Step 2: Convert to fraction form
    263/362.98 = 159.56/x
  3. Step 3: Cross multiply
    263x = 362.98 × 159.56
  4. Step 4: Simplify right side
    263x = 57,917.09
  5. Step 5: Solve for x
    x = 57,917.09/263
  6. Step 6: Final answer
    x = 220.22

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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.