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Finding the Fourth Proportional to 71,320.98, 106,918.02 and 33,857.94

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Solution

The fourth proportional to 71,320.98, 106,918.02 and 33,857.94 is: 50,756.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,320.98 : 106,918.02 = 33,857.94 : x
  2. Step 2: Convert to fraction form
    71,320.98/106,918.02 = 33,857.94/x
  3. Step 3: Cross multiply
    71,320.98x = 106,918.02 × 33,857.94
  4. Step 4: Simplify right side
    71,320.98x = 3,620,023,906.08
  5. Step 5: Solve for x
    x = 3,620,023,906.08/71,320.98
  6. Step 6: Final answer
    x = 50,756.79

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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.