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Finding the Fourth Proportional to 118,229.87, 177,339.84 and 55,028.25

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Solution

The fourth proportional to 118,229.87, 177,339.84 and 55,028.25 is: 82,540.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,229.87 : 177,339.84 = 55,028.25 : x
  2. Step 2: Convert to fraction form
    118,229.87/177,339.84 = 55,028.25/x
  3. Step 3: Cross multiply
    118,229.87x = 177,339.84 × 55,028.25
  4. Step 4: Simplify right side
    118,229.87x = 9,758,701,729.81
  5. Step 5: Solve for x
    x = 9,758,701,729.81/118,229.87
  6. Step 6: Final answer
    x = 82,540.07

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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.