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Finding the Fourth Proportional to 494,169.76, 741,392.88 and 161,979.04

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Solution

The fourth proportional to 494,169.76, 741,392.88 and 161,979.04 is: 243,013.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,169.76 : 741,392.88 = 161,979.04 : x
  2. Step 2: Convert to fraction form
    494,169.76/741,392.88 = 161,979.04/x
  3. Step 3: Cross multiply
    494,169.76x = 741,392.88 × 161,979.04
  4. Step 4: Simplify right side
    494,169.76x = 120,090,106,965.24
  5. Step 5: Solve for x
    x = 120,090,106,965.24/494,169.76
  6. Step 6: Final answer
    x = 243,013.87

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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.