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Finding the Fourth Proportional to 335,963.85, 504,016.64 and 111,311.43

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Solution

The fourth proportional to 335,963.85, 504,016.64 and 111,311.43 is: 166,990.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,963.85 : 504,016.64 = 111,311.43 : x
  2. Step 2: Convert to fraction form
    335,963.85/504,016.64 = 111,311.43/x
  3. Step 3: Cross multiply
    335,963.85x = 504,016.64 × 111,311.43
  4. Step 4: Simplify right side
    335,963.85x = 56,102,812,942.20
  5. Step 5: Solve for x
    x = 56,102,812,942.20/335,963.85
  6. Step 6: Final answer
    x = 166,990.62

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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.