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Finding the Fourth Proportional to 366,057.48, 505,219.78 and 251,241.80

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Solution

The fourth proportional to 366,057.48, 505,219.78 and 251,241.80 is: 346,755.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,057.48 : 505,219.78 = 251,241.80 : x
  2. Step 2: Convert to fraction form
    366,057.48/505,219.78 = 251,241.80/x
  3. Step 3: Cross multiply
    366,057.48x = 505,219.78 × 251,241.80
  4. Step 4: Simplify right side
    366,057.48x = 126,932,327,552.62
  5. Step 5: Solve for x
    x = 126,932,327,552.62/366,057.48
  6. Step 6: Final answer
    x = 346,755.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.