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Finding the Fourth Proportional to 543,241.20, 814,278.60 and 206,151.60

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Solution

The fourth proportional to 543,241.20, 814,278.60 and 206,151.60 is: 309,006.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,241.20 : 814,278.60 = 206,151.60 : x
  2. Step 2: Convert to fraction form
    543,241.20/814,278.60 = 206,151.60/x
  3. Step 3: Cross multiply
    543,241.20x = 814,278.60 × 206,151.60
  4. Step 4: Simplify right side
    543,241.20x = 167,864,836,235.76
  5. Step 5: Solve for x
    x = 167,864,836,235.76/543,241.20
  6. Step 6: Final answer
    x = 309,006.08

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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.