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Finding the Fourth Proportional to 267.92, 369.64 and 151.46

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Solution

The fourth proportional to 267.92, 369.64 and 151.46 is: 208.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.92 : 369.64 = 151.46 : x
  2. Step 2: Convert to fraction form
    267.92/369.64 = 151.46/x
  3. Step 3: Cross multiply
    267.92x = 369.64 × 151.46
  4. Step 4: Simplify right side
    267.92x = 55,985.67
  5. Step 5: Solve for x
    x = 55,985.67/267.92
  6. Step 6: Final answer
    x = 208.96

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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.