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Finding the Fourth Proportional to 262.56, 362.34 and 159

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Solution

The fourth proportional to 262.56, 362.34 and 159 is: 219.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.56 : 362.34 = 159 : x
  2. Step 2: Convert to fraction form
    262.56/362.34 = 159/x
  3. Step 3: Cross multiply
    262.56x = 362.34 × 159
  4. Step 4: Simplify right side
    262.56x = 57,612.06
  5. Step 5: Solve for x
    x = 57,612.06/262.56
  6. Step 6: Final answer
    x = 219.42

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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.