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Finding the Fourth Proportional to 441,772.80, 662,659.20 and 161,491.20

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Solution

The fourth proportional to 441,772.80, 662,659.20 and 161,491.20 is: 242,236.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,772.80 : 662,659.20 = 161,491.20 : x
  2. Step 2: Convert to fraction form
    441,772.80/662,659.20 = 161,491.20/x
  3. Step 3: Cross multiply
    441,772.80x = 662,659.20 × 161,491.20
  4. Step 4: Simplify right side
    441,772.80x = 107,013,629,399.04
  5. Step 5: Solve for x
    x = 107,013,629,399.04/441,772.80
  6. Step 6: Final answer
    x = 242,236.80

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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.