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Finding the Fourth Proportional to 267,383.64, 401,067.90 and 89,900.76

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Solution

The fourth proportional to 267,383.64, 401,067.90 and 89,900.76 is: 134,848.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,383.64 : 401,067.90 = 89,900.76 : x
  2. Step 2: Convert to fraction form
    267,383.64/401,067.90 = 89,900.76/x
  3. Step 3: Cross multiply
    267,383.64x = 401,067.90 × 89,900.76
  4. Step 4: Simplify right side
    267,383.64x = 36,056,309,021.60
  5. Step 5: Solve for x
    x = 36,056,309,021.60/267,383.64
  6. Step 6: Final answer
    x = 134,848.60

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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.