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Finding the Fourth Proportional to 267,311.52, 399,859.16 and 203,649.96

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Solution

The fourth proportional to 267,311.52, 399,859.16 and 203,649.96 is: 304,630.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,311.52 : 399,859.16 = 203,649.96 : x
  2. Step 2: Convert to fraction form
    267,311.52/399,859.16 = 203,649.96/x
  3. Step 3: Cross multiply
    267,311.52x = 399,859.16 × 203,649.96
  4. Step 4: Simplify right side
    267,311.52x = 81,431,301,939.63
  5. Step 5: Solve for x
    x = 81,431,301,939.63/267,311.52
  6. Step 6: Final answer
    x = 304,630.72

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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.