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Finding the Fourth Proportional to 335.95, 503.87 and 92.42

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Solution

The fourth proportional to 335.95, 503.87 and 92.42 is: 138.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.95 : 503.87 = 92.42 : x
  2. Step 2: Convert to fraction form
    335.95/503.87 = 92.42/x
  3. Step 3: Cross multiply
    335.95x = 503.87 × 92.42
  4. Step 4: Simplify right side
    335.95x = 46,568.46
  5. Step 5: Solve for x
    x = 46,568.46/335.95
  6. Step 6: Final answer
    x = 138.62

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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.