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Finding the Fourth Proportional to 329,674.92, 494,715.42 and 129,961.32

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Solution

The fourth proportional to 329,674.92, 494,715.42 and 129,961.32 is: 195,022.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,674.92 : 494,715.42 = 129,961.32 : x
  2. Step 2: Convert to fraction form
    329,674.92/494,715.42 = 129,961.32/x
  3. Step 3: Cross multiply
    329,674.92x = 494,715.42 × 129,961.32
  4. Step 4: Simplify right side
    329,674.92x = 64,293,869,007.55
  5. Step 5: Solve for x
    x = 64,293,869,007.55/329,674.92
  6. Step 6: Final answer
    x = 195,022.02

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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.