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Finding the Fourth Proportional to 73,738.80, 110,593.35 and 21,134.16

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Solution

The fourth proportional to 73,738.80, 110,593.35 and 21,134.16 is: 31,696.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,738.80 : 110,593.35 = 21,134.16 : x
  2. Step 2: Convert to fraction form
    73,738.80/110,593.35 = 21,134.16/x
  3. Step 3: Cross multiply
    73,738.80x = 110,593.35 × 21,134.16
  4. Step 4: Simplify right side
    73,738.80x = 2,337,297,553.84
  5. Step 5: Solve for x
    x = 2,337,297,553.84/73,738.80
  6. Step 6: Final answer
    x = 31,696.98

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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.