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Finding the Fourth Proportional to 362,302.30, 543,453.45 and 222,139.90

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Solution

The fourth proportional to 362,302.30, 543,453.45 and 222,139.90 is: 333,209.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,302.30 : 543,453.45 = 222,139.90 : x
  2. Step 2: Convert to fraction form
    362,302.30/543,453.45 = 222,139.90/x
  3. Step 3: Cross multiply
    362,302.30x = 543,453.45 × 222,139.90
  4. Step 4: Simplify right side
    362,302.30x = 120,722,695,037.66
  5. Step 5: Solve for x
    x = 120,722,695,037.66/362,302.30
  6. Step 6: Final answer
    x = 333,209.85

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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.