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Finding the Fourth Proportional to 335.94, 503.90 and 92.43

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Solution

The fourth proportional to 335.94, 503.90 and 92.43 is: 138.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.94 : 503.90 = 92.43 : x
  2. Step 2: Convert to fraction form
    335.94/503.90 = 92.43/x
  3. Step 3: Cross multiply
    335.94x = 503.90 × 92.43
  4. Step 4: Simplify right side
    335.94x = 46,575.48
  5. Step 5: Solve for x
    x = 46,575.48/335.94
  6. Step 6: Final answer
    x = 138.64

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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.