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Finding the Fourth Proportional to 267.83, 401.44 and 105.41

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Solution

The fourth proportional to 267.83, 401.44 and 105.41 is: 157.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.83 : 401.44 = 105.41 : x
  2. Step 2: Convert to fraction form
    267.83/401.44 = 105.41/x
  3. Step 3: Cross multiply
    267.83x = 401.44 × 105.41
  4. Step 4: Simplify right side
    267.83x = 42,315.79
  5. Step 5: Solve for x
    x = 42,315.79/267.83
  6. Step 6: Final answer
    x = 157.99

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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.