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Finding the Fourth Proportional to 163.25, 244.57 and 117.48

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Solution

The fourth proportional to 163.25, 244.57 and 117.48 is: 176.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.25 : 244.57 = 117.48 : x
  2. Step 2: Convert to fraction form
    163.25/244.57 = 117.48/x
  3. Step 3: Cross multiply
    163.25x = 244.57 × 117.48
  4. Step 4: Simplify right side
    163.25x = 28,732.93
  5. Step 5: Solve for x
    x = 28,732.93/163.25
  6. Step 6: Final answer
    x = 176.01

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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.