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Finding the Fourth Proportional to 88,718.92, 133,099.36 and 28,747.30

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Solution

The fourth proportional to 88,718.92, 133,099.36 and 28,747.30 is: 43,127.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,718.92 : 133,099.36 = 28,747.30 : x
  2. Step 2: Convert to fraction form
    88,718.92/133,099.36 = 28,747.30/x
  3. Step 3: Cross multiply
    88,718.92x = 133,099.36 × 28,747.30
  4. Step 4: Simplify right side
    88,718.92x = 3,826,247,231.73
  5. Step 5: Solve for x
    x = 3,826,247,231.73/88,718.92
  6. Step 6: Final answer
    x = 43,127.75

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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.