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Finding the Fourth Proportional to 167.23, 250.75 and 64.46

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Solution

The fourth proportional to 167.23, 250.75 and 64.46 is: 96.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.23 : 250.75 = 64.46 : x
  2. Step 2: Convert to fraction form
    167.23/250.75 = 64.46/x
  3. Step 3: Cross multiply
    167.23x = 250.75 × 64.46
  4. Step 4: Simplify right side
    167.23x = 16,163.69
  5. Step 5: Solve for x
    x = 16,163.69/167.23
  6. Step 6: Final answer
    x = 96.65

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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.