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Finding the Fourth Proportional to 79,866.33, 119,786.80 and 26,553.88

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Solution

The fourth proportional to 79,866.33, 119,786.80 and 26,553.88 is: 39,826.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,866.33 : 119,786.80 = 26,553.88 : x
  2. Step 2: Convert to fraction form
    79,866.33/119,786.80 = 26,553.88/x
  3. Step 3: Cross multiply
    79,866.33x = 119,786.80 × 26,553.88
  4. Step 4: Simplify right side
    79,866.33x = 3,180,804,180.01
  5. Step 5: Solve for x
    x = 3,180,804,180.01/79,866.33
  6. Step 6: Final answer
    x = 39,826.60

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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.