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Finding the Fourth Proportional to 352,902.61, 486,997.04 and 197,843.62

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Solution

The fourth proportional to 352,902.61, 486,997.04 and 197,843.62 is: 273,019.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,902.61 : 486,997.04 = 197,843.62 : x
  2. Step 2: Convert to fraction form
    352,902.61/486,997.04 = 197,843.62/x
  3. Step 3: Cross multiply
    352,902.61x = 486,997.04 × 197,843.62
  4. Step 4: Simplify right side
    352,902.61x = 96,349,257,322.88
  5. Step 5: Solve for x
    x = 96,349,257,322.88/352,902.61
  6. Step 6: Final answer
    x = 273,019.40

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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.