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Finding the Fourth Proportional to 49,906.80, 74,860.20 and 44,986.05

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Solution

The fourth proportional to 49,906.80, 74,860.20 and 44,986.05 is: 67,479.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,906.80 : 74,860.20 = 44,986.05 : x
  2. Step 2: Convert to fraction form
    49,906.80/74,860.20 = 44,986.05/x
  3. Step 3: Cross multiply
    49,906.80x = 74,860.20 × 44,986.05
  4. Step 4: Simplify right side
    49,906.80x = 3,367,664,700.21
  5. Step 5: Solve for x
    x = 3,367,664,700.21/49,906.80
  6. Step 6: Final answer
    x = 67,479.08

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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.