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Finding the Fourth Proportional to 197.16, 294.44 and 166.74

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Solution

The fourth proportional to 197.16, 294.44 and 166.74 is: 249.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.16 : 294.44 = 166.74 : x
  2. Step 2: Convert to fraction form
    197.16/294.44 = 166.74/x
  3. Step 3: Cross multiply
    197.16x = 294.44 × 166.74
  4. Step 4: Simplify right side
    197.16x = 49,094.93
  5. Step 5: Solve for x
    x = 49,094.93/197.16
  6. Step 6: Final answer
    x = 249.01

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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.