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Finding the Fourth Proportional to 232.94, 349.42 and 70.64

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Solution

The fourth proportional to 232.94, 349.42 and 70.64 is: 105.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.94 : 349.42 = 70.64 : x
  2. Step 2: Convert to fraction form
    232.94/349.42 = 70.64/x
  3. Step 3: Cross multiply
    232.94x = 349.42 × 70.64
  4. Step 4: Simplify right side
    232.94x = 24,683.03
  5. Step 5: Solve for x
    x = 24,683.03/232.94
  6. Step 6: Final answer
    x = 105.96

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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.