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Finding the Fourth Proportional to 362,553.80, 543,830.90 and 137,862.36

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Solution

The fourth proportional to 362,553.80, 543,830.90 and 137,862.36 is: 206,793.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,553.80 : 543,830.90 = 137,862.36 : x
  2. Step 2: Convert to fraction form
    362,553.80/543,830.90 = 137,862.36/x
  3. Step 3: Cross multiply
    362,553.80x = 543,830.90 × 137,862.36
  4. Step 4: Simplify right side
    362,553.80x = 74,973,810,625.61
  5. Step 5: Solve for x
    x = 74,973,810,625.61/362,553.80
  6. Step 6: Final answer
    x = 206,793.62

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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.