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Finding the Fourth Proportional to 223,418.90, 335,125.40 and 54,940.68

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Solution

The fourth proportional to 223,418.90, 335,125.40 and 54,940.68 is: 82,410.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,418.90 : 335,125.40 = 54,940.68 : x
  2. Step 2: Convert to fraction form
    223,418.90/335,125.40 = 54,940.68/x
  3. Step 3: Cross multiply
    223,418.90x = 335,125.40 × 54,940.68
  4. Step 4: Simplify right side
    223,418.90x = 18,412,017,361.27
  5. Step 5: Solve for x
    x = 18,412,017,361.27/223,418.90
  6. Step 6: Final answer
    x = 82,410.29

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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.