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Finding the Fourth Proportional to 335,960.80, 503,930.40 and 111,331.60

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Solution

The fourth proportional to 335,960.80, 503,930.40 and 111,331.60 is: 166,993.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,960.80 : 503,930.40 = 111,331.60 : x
  2. Step 2: Convert to fraction form
    335,960.80/503,930.40 = 111,331.60/x
  3. Step 3: Cross multiply
    335,960.80x = 503,930.40 × 111,331.60
  4. Step 4: Simplify right side
    335,960.80x = 56,103,377,720.64
  5. Step 5: Solve for x
    x = 56,103,377,720.64/335,960.80
  6. Step 6: Final answer
    x = 166,993.82

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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.