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Finding the Fourth Proportional to 84,096.60, 115,959.03 and 68,735.48

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Solution

The fourth proportional to 84,096.60, 115,959.03 and 68,735.48 is: 94,777.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,096.60 : 115,959.03 = 68,735.48 : x
  2. Step 2: Convert to fraction form
    84,096.60/115,959.03 = 68,735.48/x
  3. Step 3: Cross multiply
    84,096.60x = 115,959.03 × 68,735.48
  4. Step 4: Simplify right side
    84,096.60x = 7,970,499,651.22
  5. Step 5: Solve for x
    x = 7,970,499,651.22/84,096.60
  6. Step 6: Final answer
    x = 94,777.91

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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.