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Finding the Fourth Proportional to 337,120.40, 505,340.40 and 168,381.20

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Solution

The fourth proportional to 337,120.40, 505,340.40 and 168,381.20 is: 252,401.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,120.40 : 505,340.40 = 168,381.20 : x
  2. Step 2: Convert to fraction form
    337,120.40/505,340.40 = 168,381.20/x
  3. Step 3: Cross multiply
    337,120.40x = 505,340.40 × 168,381.20
  4. Step 4: Simplify right side
    337,120.40x = 85,089,822,960.48
  5. Step 5: Solve for x
    x = 85,089,822,960.48/337,120.40
  6. Step 6: Final answer
    x = 252,401.88

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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.