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Finding the Fourth Proportional to 163.46, 244.74 and 111.98

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Solution

The fourth proportional to 163.46, 244.74 and 111.98 is: 167.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.46 : 244.74 = 111.98 : x
  2. Step 2: Convert to fraction form
    163.46/244.74 = 111.98/x
  3. Step 3: Cross multiply
    163.46x = 244.74 × 111.98
  4. Step 4: Simplify right side
    163.46x = 27,405.99
  5. Step 5: Solve for x
    x = 27,405.99/163.46
  6. Step 6: Final answer
    x = 167.66

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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.