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Finding the Fourth Proportional to 53,611.47, 80,542.86 and 50,581.91

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Solution

The fourth proportional to 53,611.47, 80,542.86 and 50,581.91 is: 75,991.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,611.47 : 80,542.86 = 50,581.91 : x
  2. Step 2: Convert to fraction form
    53,611.47/80,542.86 = 50,581.91/x
  3. Step 3: Cross multiply
    53,611.47x = 80,542.86 × 50,581.91
  4. Step 4: Simplify right side
    53,611.47x = 4,074,011,292.95
  5. Step 5: Solve for x
    x = 4,074,011,292.95/53,611.47
  6. Step 6: Final answer
    x = 75,991.41

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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.