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Finding the Fourth Proportional to 361,170.87, 541,721.75 and 124,480.95

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Solution

The fourth proportional to 361,170.87, 541,721.75 and 124,480.95 is: 186,709.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,170.87 : 541,721.75 = 124,480.95 : x
  2. Step 2: Convert to fraction form
    361,170.87/541,721.75 = 124,480.95/x
  3. Step 3: Cross multiply
    361,170.87x = 541,721.75 × 124,480.95
  4. Step 4: Simplify right side
    361,170.87x = 67,434,037,453.26
  5. Step 5: Solve for x
    x = 67,434,037,453.26/361,170.87
  6. Step 6: Final answer
    x = 186,709.51

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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.