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Finding the Fourth Proportional to 226,090.80, 339,184.80 and 68,335.20

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Solution

The fourth proportional to 226,090.80, 339,184.80 and 68,335.20 is: 102,517.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,090.80 : 339,184.80 = 68,335.20 : x
  2. Step 2: Convert to fraction form
    226,090.80/339,184.80 = 68,335.20/x
  3. Step 3: Cross multiply
    226,090.80x = 339,184.80 × 68,335.20
  4. Step 4: Simplify right side
    226,090.80x = 23,178,261,144.96
  5. Step 5: Solve for x
    x = 23,178,261,144.96/226,090.80
  6. Step 6: Final answer
    x = 102,517.49

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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.