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Finding the Fourth Proportional to 79,887.87, 110,219.49 and 53,035.56

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Solution

The fourth proportional to 79,887.87, 110,219.49 and 53,035.56 is: 73,171.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,887.87 : 110,219.49 = 53,035.56 : x
  2. Step 2: Convert to fraction form
    79,887.87/110,219.49 = 53,035.56/x
  3. Step 3: Cross multiply
    79,887.87x = 110,219.49 × 53,035.56
  4. Step 4: Simplify right side
    79,887.87x = 5,845,552,375.06
  5. Step 5: Solve for x
    x = 5,845,552,375.06/79,887.87
  6. Step 6: Final answer
    x = 73,171.96

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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.