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Finding the Fourth Proportional to 335,728.62, 503,408.88 and 133,119.54

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Solution

The fourth proportional to 335,728.62, 503,408.88 and 133,119.54 is: 199,606.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,728.62 : 503,408.88 = 133,119.54 : x
  2. Step 2: Convert to fraction form
    335,728.62/503,408.88 = 133,119.54/x
  3. Step 3: Cross multiply
    335,728.62x = 503,408.88 × 133,119.54
  4. Step 4: Simplify right side
    335,728.62x = 67,013,558,537.52
  5. Step 5: Solve for x
    x = 67,013,558,537.52/335,728.62
  6. Step 6: Final answer
    x = 199,606.33

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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.