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Finding the Fourth Proportional to 73,203.67, 109,596.31 and 68,553.60

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Solution

The fourth proportional to 73,203.67, 109,596.31 and 68,553.60 is: 102,634.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,203.67 : 109,596.31 = 68,553.60 : x
  2. Step 2: Convert to fraction form
    73,203.67/109,596.31 = 68,553.60/x
  3. Step 3: Cross multiply
    73,203.67x = 109,596.31 × 68,553.60
  4. Step 4: Simplify right side
    73,203.67x = 7,513,221,597.22
  5. Step 5: Solve for x
    x = 7,513,221,597.22/73,203.67
  6. Step 6: Final answer
    x = 102,634.49

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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.