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Finding the Fourth Proportional to 335,641.27, 503,463.28 and 135,965.44

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Solution

The fourth proportional to 335,641.27, 503,463.28 and 135,965.44 is: 203,948.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,641.27 : 503,463.28 = 135,965.44 : x
  2. Step 2: Convert to fraction form
    335,641.27/503,463.28 = 135,965.44/x
  3. Step 3: Cross multiply
    335,641.27x = 503,463.28 × 135,965.44
  4. Step 4: Simplify right side
    335,641.27x = 68,453,604,790.47
  5. Step 5: Solve for x
    x = 68,453,604,790.47/335,641.27
  6. Step 6: Final answer
    x = 203,948.71

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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.