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Finding the Fourth Proportional to 163.29, 244.89 and 117.26

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Solution

The fourth proportional to 163.29, 244.89 and 117.26 is: 175.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.29 : 244.89 = 117.26 : x
  2. Step 2: Convert to fraction form
    163.29/244.89 = 117.26/x
  3. Step 3: Cross multiply
    163.29x = 244.89 × 117.26
  4. Step 4: Simplify right side
    163.29x = 28,715.80
  5. Step 5: Solve for x
    x = 28,715.80/163.29
  6. Step 6: Final answer
    x = 175.86

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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.