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Finding the Fourth Proportional to 226,656.80, 339,985.20 and 225,274.40

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Solution

The fourth proportional to 226,656.80, 339,985.20 and 225,274.40 is: 337,911.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,656.80 : 339,985.20 = 225,274.40 : x
  2. Step 2: Convert to fraction form
    226,656.80/339,985.20 = 225,274.40/x
  3. Step 3: Cross multiply
    226,656.80x = 339,985.20 × 225,274.40
  4. Step 4: Simplify right side
    226,656.80x = 76,589,961,938.88
  5. Step 5: Solve for x
    x = 76,589,961,938.88/226,656.80
  6. Step 6: Final answer
    x = 337,911.60

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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.