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Finding the Fourth Proportional to 267,579.86, 401,436.68 and 188,847.86

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Solution

The fourth proportional to 267,579.86, 401,436.68 and 188,847.86 is: 283,318.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,579.86 : 401,436.68 = 188,847.86 : x
  2. Step 2: Convert to fraction form
    267,579.86/401,436.68 = 188,847.86/x
  3. Step 3: Cross multiply
    267,579.86x = 401,436.68 × 188,847.86
  4. Step 4: Simplify right side
    267,579.86x = 75,810,454,992.08
  5. Step 5: Solve for x
    x = 75,810,454,992.08/267,579.86
  6. Step 6: Final answer
    x = 283,318.99

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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.