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Finding the Fourth Proportional to 267.92, 401.04 and 190.16

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Solution

The fourth proportional to 267.92, 401.04 and 190.16 is: 284.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.92 : 401.04 = 190.16 : x
  2. Step 2: Convert to fraction form
    267.92/401.04 = 190.16/x
  3. Step 3: Cross multiply
    267.92x = 401.04 × 190.16
  4. Step 4: Simplify right side
    267.92x = 76,261.77
  5. Step 5: Solve for x
    x = 76,261.77/267.92
  6. Step 6: Final answer
    x = 284.64

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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.