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Finding the Fourth Proportional to 273,375.30, 410,370.15 and 211,320.90

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Solution

The fourth proportional to 273,375.30, 410,370.15 and 211,320.90 is: 317,218.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,375.30 : 410,370.15 = 211,320.90 : x
  2. Step 2: Convert to fraction form
    273,375.30/410,370.15 = 211,320.90/x
  3. Step 3: Cross multiply
    273,375.30x = 410,370.15 × 211,320.90
  4. Step 4: Simplify right side
    273,375.30x = 86,719,789,431.14
  5. Step 5: Solve for x
    x = 86,719,789,431.14/273,375.30
  6. Step 6: Final answer
    x = 317,218.82

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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.