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Finding the Fourth Proportional to 117.67, 176.51 and 36.52

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Solution

The fourth proportional to 117.67, 176.51 and 36.52 is: 54.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.67 : 176.51 = 36.52 : x
  2. Step 2: Convert to fraction form
    117.67/176.51 = 36.52/x
  3. Step 3: Cross multiply
    117.67x = 176.51 × 36.52
  4. Step 4: Simplify right side
    117.67x = 6,446.15
  5. Step 5: Solve for x
    x = 6,446.15/117.67
  6. Step 6: Final answer
    x = 54.78

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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.