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Finding the Fourth Proportional to 361,803.56, 499,305.58 and 200,649.01

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Solution

The fourth proportional to 361,803.56, 499,305.58 and 200,649.01 is: 276,904.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,803.56 : 499,305.58 = 200,649.01 : x
  2. Step 2: Convert to fraction form
    361,803.56/499,305.58 = 200,649.01/x
  3. Step 3: Cross multiply
    361,803.56x = 499,305.58 × 200,649.01
  4. Step 4: Simplify right side
    361,803.56x = 100,185,167,817.95
  5. Step 5: Solve for x
    x = 100,185,167,817.95/361,803.56
  6. Step 6: Final answer
    x = 276,904.87

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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.