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Finding the Fourth Proportional to 267,321.36, 400,953.79 and 140,910.94

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Solution

The fourth proportional to 267,321.36, 400,953.79 and 140,910.94 is: 211,351.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,321.36 : 400,953.79 = 140,910.94 : x
  2. Step 2: Convert to fraction form
    267,321.36/400,953.79 = 140,910.94/x
  3. Step 3: Cross multiply
    267,321.36x = 400,953.79 × 140,910.94
  4. Step 4: Simplify right side
    267,321.36x = 56,498,775,445.46
  5. Step 5: Solve for x
    x = 56,498,775,445.46/267,321.36
  6. Step 6: Final answer
    x = 211,351.52

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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.