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Finding the Fourth Proportional to 179, 268.38 and 92.36

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Solution

The fourth proportional to 179, 268.38 and 92.36 is: 138.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    179 : 268.38 = 92.36 : x
  2. Step 2: Convert to fraction form
    179/268.38 = 92.36/x
  3. Step 3: Cross multiply
    179x = 268.38 × 92.36
  4. Step 4: Simplify right side
    179x = 24,787.58
  5. Step 5: Solve for x
    x = 24,787.58/179
  6. Step 6: Final answer
    x = 138.48

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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.