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Finding the Fourth Proportional to 164.69, 227.18 and 98.27

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Solution

The fourth proportional to 164.69, 227.18 and 98.27 is: 135.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.69 : 227.18 = 98.27 : x
  2. Step 2: Convert to fraction form
    164.69/227.18 = 98.27/x
  3. Step 3: Cross multiply
    164.69x = 227.18 × 98.27
  4. Step 4: Simplify right side
    164.69x = 22,324.98
  5. Step 5: Solve for x
    x = 22,324.98/164.69
  6. Step 6: Final answer
    x = 135.56

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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.