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Finding the Fourth Proportional to 93,198.93, 139,660.16 and 68,453.97

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Solution

The fourth proportional to 93,198.93, 139,660.16 and 68,453.97 is: 102,579.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,198.93 : 139,660.16 = 68,453.97 : x
  2. Step 2: Convert to fraction form
    93,198.93/139,660.16 = 68,453.97/x
  3. Step 3: Cross multiply
    93,198.93x = 139,660.16 × 68,453.97
  4. Step 4: Simplify right side
    93,198.93x = 9,560,292,060.57
  5. Step 5: Solve for x
    x = 9,560,292,060.57/93,198.93
  6. Step 6: Final answer
    x = 102,579.42

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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.