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Finding the Fourth Proportional to 362,351.55, 543,363.30 and 137,637.30

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Solution

The fourth proportional to 362,351.55, 543,363.30 and 137,637.30 is: 206,393.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,351.55 : 543,363.30 = 137,637.30 : x
  2. Step 2: Convert to fraction form
    362,351.55/543,363.30 = 137,637.30/x
  3. Step 3: Cross multiply
    362,351.55x = 543,363.30 × 137,637.30
  4. Step 4: Simplify right side
    362,351.55x = 74,787,057,531.09
  5. Step 5: Solve for x
    x = 74,787,057,531.09/362,351.55
  6. Step 6: Final answer
    x = 206,393.65

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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.