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Finding the Fourth Proportional to 197.16, 294.56 and 164.76

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Solution

The fourth proportional to 197.16, 294.56 and 164.76 is: 246.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.16 : 294.56 = 164.76 : x
  2. Step 2: Convert to fraction form
    197.16/294.56 = 164.76/x
  3. Step 3: Cross multiply
    197.16x = 294.56 × 164.76
  4. Step 4: Simplify right side
    197.16x = 48,530.88
  5. Step 5: Solve for x
    x = 48,530.88/197.16
  6. Step 6: Final answer
    x = 246.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.