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Finding the Fourth Proportional to 267.69, 401.54 and 176.49

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Solution

The fourth proportional to 267.69, 401.54 and 176.49 is: 264.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.69 : 401.54 = 176.49 : x
  2. Step 2: Convert to fraction form
    267.69/401.54 = 176.49/x
  3. Step 3: Cross multiply
    267.69x = 401.54 × 176.49
  4. Step 4: Simplify right side
    267.69x = 70,867.79
  5. Step 5: Solve for x
    x = 70,867.79/267.69
  6. Step 6: Final answer
    x = 264.74

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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.