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Finding the Fourth Proportional to 267.50, 401.79 and 176.24

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Solution

The fourth proportional to 267.50, 401.79 and 176.24 is: 264.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.50 : 401.79 = 176.24 : x
  2. Step 2: Convert to fraction form
    267.50/401.79 = 176.24/x
  3. Step 3: Cross multiply
    267.50x = 401.79 × 176.24
  4. Step 4: Simplify right side
    267.50x = 70,811.47
  5. Step 5: Solve for x
    x = 70,811.47/267.50
  6. Step 6: Final answer
    x = 264.72

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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.