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Finding the Fourth Proportional to 547,601.43, 821,479.99 and 168,553.78

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Solution

The fourth proportional to 547,601.43, 821,479.99 and 168,553.78 is: 252,854.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,601.43 : 821,479.99 = 168,553.78 : x
  2. Step 2: Convert to fraction form
    547,601.43/821,479.99 = 168,553.78/x
  3. Step 3: Cross multiply
    547,601.43x = 821,479.99 × 168,553.78
  4. Step 4: Simplify right side
    547,601.43x = 138,463,553,401.46
  5. Step 5: Solve for x
    x = 138,463,553,401.46/547,601.43
  6. Step 6: Final answer
    x = 252,854.63

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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.