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Finding the Fourth Proportional to 321,044.40, 443,046.08 and 175,863.56

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Solution

The fourth proportional to 321,044.40, 443,046.08 and 175,863.56 is: 242,694.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,044.40 : 443,046.08 = 175,863.56 : x
  2. Step 2: Convert to fraction form
    321,044.40/443,046.08 = 175,863.56/x
  3. Step 3: Cross multiply
    321,044.40x = 443,046.08 × 175,863.56
  4. Step 4: Simplify right side
    321,044.40x = 77,915,660,872.84
  5. Step 5: Solve for x
    x = 77,915,660,872.84/321,044.40
  6. Step 6: Final answer
    x = 242,694.35

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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.