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Finding the Fourth Proportional to 118,230.46, 177,340.72 and 55,028.84

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Solution

The fourth proportional to 118,230.46, 177,340.72 and 55,028.84 is: 82,540.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,230.46 : 177,340.72 = 55,028.84 : x
  2. Step 2: Convert to fraction form
    118,230.46/177,340.72 = 55,028.84/x
  3. Step 3: Cross multiply
    118,230.46x = 177,340.72 × 55,028.84
  4. Step 4: Simplify right side
    118,230.46x = 9,758,853,953.47
  5. Step 5: Solve for x
    x = 9,758,853,953.47/118,230.46
  6. Step 6: Final answer
    x = 82,540.95

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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.