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Finding the Fourth Proportional to 568,143.39, 852,068.34 and 168,693.78

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Solution

The fourth proportional to 568,143.39, 852,068.34 and 168,693.78 is: 252,997.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,143.39 : 852,068.34 = 168,693.78 : x
  2. Step 2: Convert to fraction form
    568,143.39/852,068.34 = 168,693.78/x
  3. Step 3: Cross multiply
    568,143.39x = 852,068.34 × 168,693.78
  4. Step 4: Simplify right side
    568,143.39x = 143,738,629,092.93
  5. Step 5: Solve for x
    x = 143,738,629,092.93/568,143.39
  6. Step 6: Final answer
    x = 252,997.10

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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.