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Finding the Fourth Proportional to 167.63, 251.44 and 52.08

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Solution

The fourth proportional to 167.63, 251.44 and 52.08 is: 78.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.63 : 251.44 = 52.08 : x
  2. Step 2: Convert to fraction form
    167.63/251.44 = 52.08/x
  3. Step 3: Cross multiply
    167.63x = 251.44 × 52.08
  4. Step 4: Simplify right side
    167.63x = 13,094.73
  5. Step 5: Solve for x
    x = 13,094.73/167.63
  6. Step 6: Final answer
    x = 78.12

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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.