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Finding the Fourth Proportional to 267.36, 368.94 and 197.46

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Solution

The fourth proportional to 267.36, 368.94 and 197.46 is: 272.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.36 : 368.94 = 197.46 : x
  2. Step 2: Convert to fraction form
    267.36/368.94 = 197.46/x
  3. Step 3: Cross multiply
    267.36x = 368.94 × 197.46
  4. Step 4: Simplify right side
    267.36x = 72,850.89
  5. Step 5: Solve for x
    x = 72,850.89/267.36
  6. Step 6: Final answer
    x = 272.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.