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Finding the Fourth Proportional to 89,614.44, 123,400.96 and 87,625.44

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Solution

The fourth proportional to 89,614.44, 123,400.96 and 87,625.44 is: 120,662.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,614.44 : 123,400.96 = 87,625.44 : x
  2. Step 2: Convert to fraction form
    89,614.44/123,400.96 = 87,625.44/x
  3. Step 3: Cross multiply
    89,614.44x = 123,400.96 × 87,625.44
  4. Step 4: Simplify right side
    89,614.44x = 10,813,063,416.42
  5. Step 5: Solve for x
    x = 10,813,063,416.42/89,614.44
  6. Step 6: Final answer
    x = 120,662.07

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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.