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Finding the Fourth Proportional to 197.96, 296.92 and 192.02

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Solution

The fourth proportional to 197.96, 296.92 and 192.02 is: 288.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.96 : 296.92 = 192.02 : x
  2. Step 2: Convert to fraction form
    197.96/296.92 = 192.02/x
  3. Step 3: Cross multiply
    197.96x = 296.92 × 192.02
  4. Step 4: Simplify right side
    197.96x = 57,014.58
  5. Step 5: Solve for x
    x = 57,014.58/197.96
  6. Step 6: Final answer
    x = 288.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.