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Finding the Fourth Proportional to 362,290.90, 543,435.90 and 137,597.61

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Solution

The fourth proportional to 362,290.90, 543,435.90 and 137,597.61 is: 206,396.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,290.90 : 543,435.90 = 137,597.61 : x
  2. Step 2: Convert to fraction form
    362,290.90/543,435.90 = 137,597.61/x
  3. Step 3: Cross multiply
    362,290.90x = 543,435.90 × 137,597.61
  4. Step 4: Simplify right side
    362,290.90x = 74,775,481,215.18
  5. Step 5: Solve for x
    x = 74,775,481,215.18/362,290.90
  6. Step 6: Final answer
    x = 206,396.24

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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.