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Finding the Fourth Proportional to 167.65, 251.46 and 45.93

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Solution

The fourth proportional to 167.65, 251.46 and 45.93 is: 68.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.65 : 251.46 = 45.93 : x
  2. Step 2: Convert to fraction form
    167.65/251.46 = 45.93/x
  3. Step 3: Cross multiply
    167.65x = 251.46 × 45.93
  4. Step 4: Simplify right side
    167.65x = 11,548.30
  5. Step 5: Solve for x
    x = 11,548.30/167.65
  6. Step 6: Final answer
    x = 68.88

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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.