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Finding the Fourth Proportional to 335.04, 462.31 and 187.67

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Solution

The fourth proportional to 335.04, 462.31 and 187.67 is: 258.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.04 : 462.31 = 187.67 : x
  2. Step 2: Convert to fraction form
    335.04/462.31 = 187.67/x
  3. Step 3: Cross multiply
    335.04x = 462.31 × 187.67
  4. Step 4: Simplify right side
    335.04x = 86,760.78
  5. Step 5: Solve for x
    x = 86,760.78/335.04
  6. Step 6: Final answer
    x = 258.96

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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.