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Finding the Fourth Proportional to 267.44, 368.76 and 197.60

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Solution

The fourth proportional to 267.44, 368.76 and 197.60 is: 272.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.44 : 368.76 = 197.60 : x
  2. Step 2: Convert to fraction form
    267.44/368.76 = 197.60/x
  3. Step 3: Cross multiply
    267.44x = 368.76 × 197.60
  4. Step 4: Simplify right side
    267.44x = 72,866.98
  5. Step 5: Solve for x
    x = 72,866.98/267.44
  6. Step 6: Final answer
    x = 272.46

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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.