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Finding the Fourth Proportional to 119,375.97, 164,735.36 and 65,660.97

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Solution

The fourth proportional to 119,375.97, 164,735.36 and 65,660.97 is: 90,610.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,375.97 : 164,735.36 = 65,660.97 : x
  2. Step 2: Convert to fraction form
    119,375.97/164,735.36 = 65,660.97/x
  3. Step 3: Cross multiply
    119,375.97x = 164,735.36 × 65,660.97
  4. Step 4: Simplify right side
    119,375.97x = 10,816,683,648.61
  5. Step 5: Solve for x
    x = 10,816,683,648.61/119,375.97
  6. Step 6: Final answer
    x = 90,610.23

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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.