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Finding the Fourth Proportional to 150,788.91, 207,912.90 and 112,481.96

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Solution

The fourth proportional to 150,788.91, 207,912.90 and 112,481.96 is: 155,093.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,788.91 : 207,912.90 = 112,481.96 : x
  2. Step 2: Convert to fraction form
    150,788.91/207,912.90 = 112,481.96/x
  3. Step 3: Cross multiply
    150,788.91x = 207,912.90 × 112,481.96
  4. Step 4: Simplify right side
    150,788.91x = 23,386,449,938.87
  5. Step 5: Solve for x
    x = 23,386,449,938.87/150,788.91
  6. Step 6: Final answer
    x = 155,093.97

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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.