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Finding the Fourth Proportional to 232.98, 349.47 and 70.66

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Solution

The fourth proportional to 232.98, 349.47 and 70.66 is: 105.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.98 : 349.47 = 70.66 : x
  2. Step 2: Convert to fraction form
    232.98/349.47 = 70.66/x
  3. Step 3: Cross multiply
    232.98x = 349.47 × 70.66
  4. Step 4: Simplify right side
    232.98x = 24,693.20
  5. Step 5: Solve for x
    x = 24,693.20/232.98
  6. Step 6: Final answer
    x = 105.99

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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.