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Finding the Fourth Proportional to 107,789.44, 148,843.52 and 67,572.48

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Solution

The fourth proportional to 107,789.44, 148,843.52 and 67,572.48 is: 93,309.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,789.44 : 148,843.52 = 67,572.48 : x
  2. Step 2: Convert to fraction form
    107,789.44/148,843.52 = 67,572.48/x
  3. Step 3: Cross multiply
    107,789.44x = 148,843.52 × 67,572.48
  4. Step 4: Simplify right side
    107,789.44x = 10,057,725,778.33
  5. Step 5: Solve for x
    x = 10,057,725,778.33/107,789.44
  6. Step 6: Final answer
    x = 93,309.01

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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.