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Finding the Fourth Proportional to 220,614.40, 330,921.60 and 183,872.80

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Solution

The fourth proportional to 220,614.40, 330,921.60 and 183,872.80 is: 275,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,614.40 : 330,921.60 = 183,872.80 : x
  2. Step 2: Convert to fraction form
    220,614.40/330,921.60 = 183,872.80/x
  3. Step 3: Cross multiply
    220,614.40x = 330,921.60 × 183,872.80
  4. Step 4: Simplify right side
    220,614.40x = 60,847,481,172.48
  5. Step 5: Solve for x
    x = 60,847,481,172.48/220,614.40
  6. Step 6: Final answer
    x = 275,809.20

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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.