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Finding the Fourth Proportional to 97.68, 146.44 and 46.24

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Solution

The fourth proportional to 97.68, 146.44 and 46.24 is: 69.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    97.68 : 146.44 = 46.24 : x
  2. Step 2: Convert to fraction form
    97.68/146.44 = 46.24/x
  3. Step 3: Cross multiply
    97.68x = 146.44 × 46.24
  4. Step 4: Simplify right side
    97.68x = 6,771.39
  5. Step 5: Solve for x
    x = 6,771.39/97.68
  6. Step 6: Final answer
    x = 69.32

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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.