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Finding the Fourth Proportional to 329,021.63, 454,049.91 and 178,118.63

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Solution

The fourth proportional to 329,021.63, 454,049.91 and 178,118.63 is: 245,803.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,021.63 : 454,049.91 = 178,118.63 : x
  2. Step 2: Convert to fraction form
    329,021.63/454,049.91 = 178,118.63/x
  3. Step 3: Cross multiply
    329,021.63x = 454,049.91 × 178,118.63
  4. Step 4: Simplify right side
    329,021.63x = 80,874,745,650.57
  5. Step 5: Solve for x
    x = 80,874,745,650.57/329,021.63
  6. Step 6: Final answer
    x = 245,803.74

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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.