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Finding the Fourth Proportional to 335.15, 462.43 and 195.23

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Solution

The fourth proportional to 335.15, 462.43 and 195.23 is: 269.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.15 : 462.43 = 195.23 : x
  2. Step 2: Convert to fraction form
    335.15/462.43 = 195.23/x
  3. Step 3: Cross multiply
    335.15x = 462.43 × 195.23
  4. Step 4: Simplify right side
    335.15x = 90,280.21
  5. Step 5: Solve for x
    x = 90,280.21/335.15
  6. Step 6: Final answer
    x = 269.37

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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.