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Finding the Fourth Proportional to 361,617.72, 499,061.92 and 200,523.28

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Solution

The fourth proportional to 361,617.72, 499,061.92 and 200,523.28 is: 276,738.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,617.72 : 499,061.92 = 200,523.28 : x
  2. Step 2: Convert to fraction form
    361,617.72/499,061.92 = 200,523.28/x
  3. Step 3: Cross multiply
    361,617.72x = 499,061.92 × 200,523.28
  4. Step 4: Simplify right side
    361,617.72x = 100,073,533,121.50
  5. Step 5: Solve for x
    x = 100,073,533,121.50/361,617.72
  6. Step 6: Final answer
    x = 276,738.47

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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.