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Finding the Fourth Proportional to 60,808.80, 91,213.20 and 37,480.80

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Solution

The fourth proportional to 60,808.80, 91,213.20 and 37,480.80 is: 56,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,808.80 : 91,213.20 = 37,480.80 : x
  2. Step 2: Convert to fraction form
    60,808.80/91,213.20 = 37,480.80/x
  3. Step 3: Cross multiply
    60,808.80x = 91,213.20 × 37,480.80
  4. Step 4: Simplify right side
    60,808.80x = 3,418,743,706.56
  5. Step 5: Solve for x
    x = 3,418,743,706.56/60,808.80
  6. Step 6: Final answer
    x = 56,221.20

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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.