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Finding the Fourth Proportional to 167.23, 250.90 and 64.53

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Solution

The fourth proportional to 167.23, 250.90 and 64.53 is: 96.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.23 : 250.90 = 64.53 : x
  2. Step 2: Convert to fraction form
    167.23/250.90 = 64.53/x
  3. Step 3: Cross multiply
    167.23x = 250.90 × 64.53
  4. Step 4: Simplify right side
    167.23x = 16,190.58
  5. Step 5: Solve for x
    x = 16,190.58/167.23
  6. Step 6: Final answer
    x = 96.82

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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.