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Finding the Fourth Proportional to 376,591.23, 519,699.99 and 206,825.34

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Solution

The fourth proportional to 376,591.23, 519,699.99 and 206,825.34 is: 285,421.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,591.23 : 519,699.99 = 206,825.34 : x
  2. Step 2: Convert to fraction form
    376,591.23/519,699.99 = 206,825.34/x
  3. Step 3: Cross multiply
    376,591.23x = 519,699.99 × 206,825.34
  4. Step 4: Simplify right side
    376,591.23x = 107,487,127,129.75
  5. Step 5: Solve for x
    x = 107,487,127,129.75/376,591.23
  6. Step 6: Final answer
    x = 285,421.22

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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.