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Finding the Fourth Proportional to 321,210.36, 481,716.54 and 222,008.04

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Solution

The fourth proportional to 321,210.36, 481,716.54 and 222,008.04 is: 332,943.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,210.36 : 481,716.54 = 222,008.04 : x
  2. Step 2: Convert to fraction form
    321,210.36/481,716.54 = 222,008.04/x
  3. Step 3: Cross multiply
    321,210.36x = 481,716.54 × 222,008.04
  4. Step 4: Simplify right side
    321,210.36x = 106,944,944,880.98
  5. Step 5: Solve for x
    x = 106,944,944,880.98/321,210.36
  6. Step 6: Final answer
    x = 332,943.64

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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.