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Finding the Fourth Proportional to 88,211.72, 132,321.90 and 25,877

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Solution

The fourth proportional to 88,211.72, 132,321.90 and 25,877 is: 38,816.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,211.72 : 132,321.90 = 25,877 : x
  2. Step 2: Convert to fraction form
    88,211.72/132,321.90 = 25,877/x
  3. Step 3: Cross multiply
    88,211.72x = 132,321.90 × 25,877
  4. Step 4: Simplify right side
    88,211.72x = 3,424,093,806.30
  5. Step 5: Solve for x
    x = 3,424,093,806.30/88,211.72
  6. Step 6: Final answer
    x = 38,816.77

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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.