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Finding the Fourth Proportional to 339,712.59, 468,809.34 and 186,757.21

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Solution

The fourth proportional to 339,712.59, 468,809.34 and 186,757.21 is: 257,728.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,712.59 : 468,809.34 = 186,757.21 : x
  2. Step 2: Convert to fraction form
    339,712.59/468,809.34 = 186,757.21/x
  3. Step 3: Cross multiply
    339,712.59x = 468,809.34 × 186,757.21
  4. Step 4: Simplify right side
    339,712.59x = 87,553,522,487.98
  5. Step 5: Solve for x
    x = 87,553,522,487.98/339,712.59
  6. Step 6: Final answer
    x = 257,728.22

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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.