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Finding the Fourth Proportional to 106,566.13, 159,644.04 and 66,600.73

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Solution

The fourth proportional to 106,566.13, 159,644.04 and 66,600.73 is: 99,772.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,566.13 : 159,644.04 = 66,600.73 : x
  2. Step 2: Convert to fraction form
    106,566.13/159,644.04 = 66,600.73/x
  3. Step 3: Cross multiply
    106,566.13x = 159,644.04 × 66,600.73
  4. Step 4: Simplify right side
    106,566.13x = 10,632,409,604.15
  5. Step 5: Solve for x
    x = 10,632,409,604.15/106,566.13
  6. Step 6: Final answer
    x = 99,772.88

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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.