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Finding the Fourth Proportional to 57,906.20, 86,924.10 and 44,816.60

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Solution

The fourth proportional to 57,906.20, 86,924.10 and 44,816.60 is: 67,275.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,906.20 : 86,924.10 = 44,816.60 : x
  2. Step 2: Convert to fraction form
    57,906.20/86,924.10 = 44,816.60/x
  3. Step 3: Cross multiply
    57,906.20x = 86,924.10 × 44,816.60
  4. Step 4: Simplify right side
    57,906.20x = 3,895,642,620.06
  5. Step 5: Solve for x
    x = 3,895,642,620.06/57,906.20
  6. Step 6: Final answer
    x = 67,275.05

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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.