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Finding the Fourth Proportional to 76,991.67, 115,491.65 and 24,405.26

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Solution

The fourth proportional to 76,991.67, 115,491.65 and 24,405.26 is: 36,609.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,991.67 : 115,491.65 = 24,405.26 : x
  2. Step 2: Convert to fraction form
    76,991.67/115,491.65 = 24,405.26/x
  3. Step 3: Cross multiply
    76,991.67x = 115,491.65 × 24,405.26
  4. Step 4: Simplify right side
    76,991.67x = 2,818,603,046.59
  5. Step 5: Solve for x
    x = 2,818,603,046.59/76,991.67
  6. Step 6: Final answer
    x = 36,609.19

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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.