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Finding the Fourth Proportional to 117.37, 176.46 and 108.46

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Solution

The fourth proportional to 117.37, 176.46 and 108.46 is: 163.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.37 : 176.46 = 108.46 : x
  2. Step 2: Convert to fraction form
    117.37/176.46 = 108.46/x
  3. Step 3: Cross multiply
    117.37x = 176.46 × 108.46
  4. Step 4: Simplify right side
    117.37x = 19,138.85
  5. Step 5: Solve for x
    x = 19,138.85/117.37
  6. Step 6: Final answer
    x = 163.06

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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.