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Finding the Fourth Proportional to 69,981.92, 104,900.54 and 32,511.43

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Solution

The fourth proportional to 69,981.92, 104,900.54 and 32,511.43 is: 48,733.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,981.92 : 104,900.54 = 32,511.43 : x
  2. Step 2: Convert to fraction form
    69,981.92/104,900.54 = 32,511.43/x
  3. Step 3: Cross multiply
    69,981.92x = 104,900.54 × 32,511.43
  4. Step 4: Simplify right side
    69,981.92x = 3,410,466,215.99
  5. Step 5: Solve for x
    x = 3,410,466,215.99/69,981.92
  6. Step 6: Final answer
    x = 48,733.53

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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.