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Finding the Fourth Proportional to 336.12, 463.70 and 196.22

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Solution

The fourth proportional to 336.12, 463.70 and 196.22 is: 270.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.12 : 463.70 = 196.22 : x
  2. Step 2: Convert to fraction form
    336.12/463.70 = 196.22/x
  3. Step 3: Cross multiply
    336.12x = 463.70 × 196.22
  4. Step 4: Simplify right side
    336.12x = 90,987.21
  5. Step 5: Solve for x
    x = 90,987.21/336.12
  6. Step 6: Final answer
    x = 270.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.