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Finding the Fourth Proportional to 321,502.95, 482,155.92 and 222,300.63

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Solution

The fourth proportional to 321,502.95, 482,155.92 and 222,300.63 is: 333,382.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,502.95 : 482,155.92 = 222,300.63 : x
  2. Step 2: Convert to fraction form
    321,502.95/482,155.92 = 222,300.63/x
  3. Step 3: Cross multiply
    321,502.95x = 482,155.92 × 222,300.63
  4. Step 4: Simplify right side
    321,502.95x = 107,183,564,774.23
  5. Step 5: Solve for x
    x = 107,183,564,774.23/321,502.95
  6. Step 6: Final answer
    x = 333,382.83

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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.