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Finding the Fourth Proportional to 223,794.95, 335,689.10 and 55,315.28

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Solution

The fourth proportional to 223,794.95, 335,689.10 and 55,315.28 is: 82,972.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,794.95 : 335,689.10 = 55,315.28 : x
  2. Step 2: Convert to fraction form
    223,794.95/335,689.10 = 55,315.28/x
  3. Step 3: Cross multiply
    223,794.95x = 335,689.10 × 55,315.28
  4. Step 4: Simplify right side
    223,794.95x = 18,568,734,604.43
  5. Step 5: Solve for x
    x = 18,568,734,604.43/223,794.95
  6. Step 6: Final answer
    x = 82,972.09

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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.