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Finding the Fourth Proportional to 329,840.34, 494,760.60 and 80,522.34

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Solution

The fourth proportional to 329,840.34, 494,760.60 and 80,522.34 is: 120,783.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,840.34 : 494,760.60 = 80,522.34 : x
  2. Step 2: Convert to fraction form
    329,840.34/494,760.60 = 80,522.34/x
  3. Step 3: Cross multiply
    329,840.34x = 494,760.60 × 80,522.34
  4. Step 4: Simplify right side
    329,840.34x = 39,839,281,251.80
  5. Step 5: Solve for x
    x = 39,839,281,251.80/329,840.34
  6. Step 6: Final answer
    x = 120,783.53

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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.