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Finding the Fourth Proportional to 59,991.80, 90,080.18 and 50,753.21

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Solution

The fourth proportional to 59,991.80, 90,080.18 and 50,753.21 is: 76,208.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,991.80 : 90,080.18 = 50,753.21 : x
  2. Step 2: Convert to fraction form
    59,991.80/90,080.18 = 50,753.21/x
  3. Step 3: Cross multiply
    59,991.80x = 90,080.18 × 50,753.21
  4. Step 4: Simplify right side
    59,991.80x = 4,571,857,588.21
  5. Step 5: Solve for x
    x = 4,571,857,588.21/59,991.80
  6. Step 6: Final answer
    x = 76,208.05

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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.