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Finding the Fourth Proportional to 97,940.73, 135,187.09 and 63,954.50

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Solution

The fourth proportional to 97,940.73, 135,187.09 and 63,954.50 is: 88,276.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,940.73 : 135,187.09 = 63,954.50 : x
  2. Step 2: Convert to fraction form
    97,940.73/135,187.09 = 63,954.50/x
  3. Step 3: Cross multiply
    97,940.73x = 135,187.09 × 63,954.50
  4. Step 4: Simplify right side
    97,940.73x = 8,645,822,747.41
  5. Step 5: Solve for x
    x = 8,645,822,747.41/97,940.73
  6. Step 6: Final answer
    x = 88,276.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.