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Finding the Fourth Proportional to 300,095.29, 449,643.17 and 211,161.96

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Solution

The fourth proportional to 300,095.29, 449,643.17 and 211,161.96 is: 316,391.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,095.29 : 449,643.17 = 211,161.96 : x
  2. Step 2: Convert to fraction form
    300,095.29/449,643.17 = 211,161.96/x
  3. Step 3: Cross multiply
    300,095.29x = 449,643.17 × 211,161.96
  4. Step 4: Simplify right side
    300,095.29x = 94,947,530,335.84
  5. Step 5: Solve for x
    x = 94,947,530,335.84/300,095.29
  6. Step 6: Final answer
    x = 316,391.27

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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.