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Finding the Fourth Proportional to 209,993.82, 314,992 and 52,222.29

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Solution

The fourth proportional to 209,993.82, 314,992 and 52,222.29 is: 78,333.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,993.82 : 314,992 = 52,222.29 : x
  2. Step 2: Convert to fraction form
    209,993.82/314,992 = 52,222.29/x
  3. Step 3: Cross multiply
    209,993.82x = 314,992 × 52,222.29
  4. Step 4: Simplify right side
    209,993.82x = 16,449,603,571.68
  5. Step 5: Solve for x
    x = 16,449,603,571.68/209,993.82
  6. Step 6: Final answer
    x = 78,333.75

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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.