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Finding the Fourth Proportional to 269,674.43, 371,993.58 and 172,843.79

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Solution

The fourth proportional to 269,674.43, 371,993.58 and 172,843.79 is: 238,423.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,674.43 : 371,993.58 = 172,843.79 : x
  2. Step 2: Convert to fraction form
    269,674.43/371,993.58 = 172,843.79/x
  3. Step 3: Cross multiply
    269,674.43x = 371,993.58 × 172,843.79
  4. Step 4: Simplify right side
    269,674.43x = 64,296,781,152.85
  5. Step 5: Solve for x
    x = 64,296,781,152.85/269,674.43
  6. Step 6: Final answer
    x = 238,423.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.