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Finding the Fourth Proportional to 321,507.08, 482,162.12 and 222,304.76

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Solution

The fourth proportional to 321,507.08, 482,162.12 and 222,304.76 is: 333,389.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,507.08 : 482,162.12 = 222,304.76 : x
  2. Step 2: Convert to fraction form
    321,507.08/482,162.12 = 222,304.76/x
  3. Step 3: Cross multiply
    321,507.08x = 482,162.12 × 222,304.76
  4. Step 4: Simplify right side
    321,507.08x = 107,186,930,845.36
  5. Step 5: Solve for x
    x = 107,186,930,845.36/321,507.08
  6. Step 6: Final answer
    x = 333,389.03

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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.