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Finding the Fourth Proportional to 93,198.65, 139,659.73 and 68,453.69

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Solution

The fourth proportional to 93,198.65, 139,659.73 and 68,453.69 is: 102,579.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,198.65 : 139,659.73 = 68,453.69 : x
  2. Step 2: Convert to fraction form
    93,198.65/139,659.73 = 68,453.69/x
  3. Step 3: Cross multiply
    93,198.65x = 139,659.73 × 68,453.69
  4. Step 4: Simplify right side
    93,198.65x = 9,560,223,862.90
  5. Step 5: Solve for x
    x = 9,560,223,862.90/93,198.65
  6. Step 6: Final answer
    x = 102,579.00

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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.