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Finding the Fourth Proportional to 363,140.56, 501,058.20 and 219,910.96

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Solution

The fourth proportional to 363,140.56, 501,058.20 and 219,910.96 is: 303,431.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,140.56 : 501,058.20 = 219,910.96 : x
  2. Step 2: Convert to fraction form
    363,140.56/501,058.20 = 219,910.96/x
  3. Step 3: Cross multiply
    363,140.56x = 501,058.20 × 219,910.96
  4. Step 4: Simplify right side
    363,140.56x = 110,188,189,777.87
  5. Step 5: Solve for x
    x = 110,188,189,777.87/363,140.56
  6. Step 6: Final answer
    x = 303,431.24

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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.