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Finding the Fourth Proportional to 84,481.11, 126,703.31 and 25,300.89

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Solution

The fourth proportional to 84,481.11, 126,703.31 and 25,300.89 is: 37,945.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,481.11 : 126,703.31 = 25,300.89 : x
  2. Step 2: Convert to fraction form
    84,481.11/126,703.31 = 25,300.89/x
  3. Step 3: Cross multiply
    84,481.11x = 126,703.31 × 25,300.89
  4. Step 4: Simplify right side
    84,481.11x = 3,205,706,382.44
  5. Step 5: Solve for x
    x = 3,205,706,382.44/84,481.11
  6. Step 6: Final answer
    x = 37,945.84

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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.