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Finding the Fourth Proportional to 81,963.02, 122,753.17 and 63,093.33

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Solution

The fourth proportional to 81,963.02, 122,753.17 and 63,093.33 is: 94,492.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,963.02 : 122,753.17 = 63,093.33 : x
  2. Step 2: Convert to fraction form
    81,963.02/122,753.17 = 63,093.33/x
  3. Step 3: Cross multiply
    81,963.02x = 122,753.17 × 63,093.33
  4. Step 4: Simplify right side
    81,963.02x = 7,744,906,342.22
  5. Step 5: Solve for x
    x = 7,744,906,342.22/81,963.02
  6. Step 6: Final answer
    x = 94,492.69

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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.