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Finding the Fourth Proportional to 117.62, 176.41 and 36.52

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Solution

The fourth proportional to 117.62, 176.41 and 36.52 is: 54.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.62 : 176.41 = 36.52 : x
  2. Step 2: Convert to fraction form
    117.62/176.41 = 36.52/x
  3. Step 3: Cross multiply
    117.62x = 176.41 × 36.52
  4. Step 4: Simplify right side
    117.62x = 6,442.49
  5. Step 5: Solve for x
    x = 6,442.49/117.62
  6. Step 6: Final answer
    x = 54.77

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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.