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Finding the Fourth Proportional to 73,944.78, 102,044.55 and 40,410.78

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Solution

The fourth proportional to 73,944.78, 102,044.55 and 40,410.78 is: 55,767.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,944.78 : 102,044.55 = 40,410.78 : x
  2. Step 2: Convert to fraction form
    73,944.78/102,044.55 = 40,410.78/x
  3. Step 3: Cross multiply
    73,944.78x = 102,044.55 × 40,410.78
  4. Step 4: Simplify right side
    73,944.78x = 4,123,699,860.25
  5. Step 5: Solve for x
    x = 4,123,699,860.25/73,944.78
  6. Step 6: Final answer
    x = 55,767.29

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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.