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Finding the Fourth Proportional to 264,581.70, 396,872.55 and 212,093.70

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Solution

The fourth proportional to 264,581.70, 396,872.55 and 212,093.70 is: 318,140.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,581.70 : 396,872.55 = 212,093.70 : x
  2. Step 2: Convert to fraction form
    264,581.70/396,872.55 = 212,093.70/x
  3. Step 3: Cross multiply
    264,581.70x = 396,872.55 × 212,093.70
  4. Step 4: Simplify right side
    264,581.70x = 84,174,167,557.94
  5. Step 5: Solve for x
    x = 84,174,167,557.94/264,581.70
  6. Step 6: Final answer
    x = 318,140.55

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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.