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Finding the Fourth Proportional to 107,993.92, 149,044.80 and 63,281.92

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Solution

The fourth proportional to 107,993.92, 149,044.80 and 63,281.92 is: 87,336.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,993.92 : 149,044.80 = 63,281.92 : x
  2. Step 2: Convert to fraction form
    107,993.92/149,044.80 = 63,281.92/x
  3. Step 3: Cross multiply
    107,993.92x = 149,044.80 × 63,281.92
  4. Step 4: Simplify right side
    107,993.92x = 9,431,841,110.02
  5. Step 5: Solve for x
    x = 9,431,841,110.02/107,993.92
  6. Step 6: Final answer
    x = 87,336.78

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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.