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Finding the Fourth Proportional to 76,991.93, 115,692.93 and 41,480.52

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Solution

The fourth proportional to 76,991.93, 115,692.93 and 41,480.52 is: 62,331.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,991.93 : 115,692.93 = 41,480.52 : x
  2. Step 2: Convert to fraction form
    76,991.93/115,692.93 = 41,480.52/x
  3. Step 3: Cross multiply
    76,991.93x = 115,692.93 × 41,480.52
  4. Step 4: Simplify right side
    76,991.93x = 4,799,002,788.26
  5. Step 5: Solve for x
    x = 4,799,002,788.26/76,991.93
  6. Step 6: Final answer
    x = 62,331.24

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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.