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Finding the Fourth Proportional to 335,940.80, 504,026.40 and 149,086.40

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Solution

The fourth proportional to 335,940.80, 504,026.40 and 149,086.40 is: 223,680.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,940.80 : 504,026.40 = 149,086.40 : x
  2. Step 2: Convert to fraction form
    335,940.80/504,026.40 = 149,086.40/x
  3. Step 3: Cross multiply
    335,940.80x = 504,026.40 × 149,086.40
  4. Step 4: Simplify right side
    335,940.80x = 75,143,481,480.96
  5. Step 5: Solve for x
    x = 75,143,481,480.96/335,940.80
  6. Step 6: Final answer
    x = 223,680.72

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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.