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Finding the Fourth Proportional to 162.49, 224.23 and 92.56

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Solution

The fourth proportional to 162.49, 224.23 and 92.56 is: 127.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.49 : 224.23 = 92.56 : x
  2. Step 2: Convert to fraction form
    162.49/224.23 = 92.56/x
  3. Step 3: Cross multiply
    162.49x = 224.23 × 92.56
  4. Step 4: Simplify right side
    162.49x = 20,754.73
  5. Step 5: Solve for x
    x = 20,754.73/162.49
  6. Step 6: Final answer
    x = 127.73

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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.