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Finding the Fourth Proportional to 84,922.99, 117,190.87 and 47,196.43

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Solution

The fourth proportional to 84,922.99, 117,190.87 and 47,196.43 is: 65,129.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,922.99 : 117,190.87 = 47,196.43 : x
  2. Step 2: Convert to fraction form
    84,922.99/117,190.87 = 47,196.43/x
  3. Step 3: Cross multiply
    84,922.99x = 117,190.87 × 47,196.43
  4. Step 4: Simplify right side
    84,922.99x = 5,530,990,692.59
  5. Step 5: Solve for x
    x = 5,530,990,692.59/84,922.99
  6. Step 6: Final answer
    x = 65,129.49

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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.