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Finding the Fourth Proportional to 201.32, 276 and 197.67

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Solution

The fourth proportional to 201.32, 276 and 197.67 is: 271.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    201.32 : 276 = 197.67 : x
  2. Step 2: Convert to fraction form
    201.32/276 = 197.67/x
  3. Step 3: Cross multiply
    201.32x = 276 × 197.67
  4. Step 4: Simplify right side
    201.32x = 54,556.92
  5. Step 5: Solve for x
    x = 54,556.92/201.32
  6. Step 6: Final answer
    x = 271.00

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.