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Finding the Fourth Proportional to 197.94, 296.55 and 95.22

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Solution

The fourth proportional to 197.94, 296.55 and 95.22 is: 142.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.94 : 296.55 = 95.22 : x
  2. Step 2: Convert to fraction form
    197.94/296.55 = 95.22/x
  3. Step 3: Cross multiply
    197.94x = 296.55 × 95.22
  4. Step 4: Simplify right side
    197.94x = 28,237.49
  5. Step 5: Solve for x
    x = 28,237.49/197.94
  6. Step 6: Final answer
    x = 142.66

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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.