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Finding the Fourth Proportional to 568,111.89, 852,021.09 and 168,662.28

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Solution

The fourth proportional to 568,111.89, 852,021.09 and 168,662.28 is: 252,949.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,111.89 : 852,021.09 = 168,662.28 : x
  2. Step 2: Convert to fraction form
    568,111.89/852,021.09 = 168,662.28/x
  3. Step 3: Cross multiply
    568,111.89x = 852,021.09 × 168,662.28
  4. Step 4: Simplify right side
    568,111.89x = 143,703,819,647.49
  5. Step 5: Solve for x
    x = 143,703,819,647.49/568,111.89
  6. Step 6: Final answer
    x = 252,949.85

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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.