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Finding the Fourth Proportional to 321,502.61, 482,155.41 and 222,300.29

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Solution

The fourth proportional to 321,502.61, 482,155.41 and 222,300.29 is: 333,382.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,502.61 : 482,155.41 = 222,300.29 : x
  2. Step 2: Convert to fraction form
    321,502.61/482,155.41 = 222,300.29/x
  3. Step 3: Cross multiply
    321,502.61x = 482,155.41 × 222,300.29
  4. Step 4: Simplify right side
    321,502.61x = 107,183,283,945.79
  5. Step 5: Solve for x
    x = 107,183,283,945.79/321,502.61
  6. Step 6: Final answer
    x = 333,382.32

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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.