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Finding the Fourth Proportional to 133.31, 184.01 and 92

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Solution

The fourth proportional to 133.31, 184.01 and 92 is: 126.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    133.31 : 184.01 = 92 : x
  2. Step 2: Convert to fraction form
    133.31/184.01 = 92/x
  3. Step 3: Cross multiply
    133.31x = 184.01 × 92
  4. Step 4: Simplify right side
    133.31x = 16,928.92
  5. Step 5: Solve for x
    x = 16,928.92/133.31
  6. Step 6: Final answer
    x = 126.99

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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.