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Finding the Fourth Proportional to 93,880.88, 140,305.89 and 68,633.54

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Solution

The fourth proportional to 93,880.88, 140,305.89 and 68,633.54 is: 102,573.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,880.88 : 140,305.89 = 68,633.54 : x
  2. Step 2: Convert to fraction form
    93,880.88/140,305.89 = 68,633.54/x
  3. Step 3: Cross multiply
    93,880.88x = 140,305.89 × 68,633.54
  4. Step 4: Simplify right side
    93,880.88x = 9,629,689,212.02
  5. Step 5: Solve for x
    x = 9,629,689,212.02/93,880.88
  6. Step 6: Final answer
    x = 102,573.49

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.