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Finding the Fourth Proportional to 362,175.31, 543,359.58 and 125,517.79

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Solution

The fourth proportional to 362,175.31, 543,359.58 and 125,517.79 is: 188,310.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,175.31 : 543,359.58 = 125,517.79 : x
  2. Step 2: Convert to fraction form
    362,175.31/543,359.58 = 125,517.79/x
  3. Step 3: Cross multiply
    362,175.31x = 543,359.58 × 125,517.79
  4. Step 4: Simplify right side
    362,175.31x = 68,201,293,656.93
  5. Step 5: Solve for x
    x = 68,201,293,656.93/362,175.31
  6. Step 6: Final answer
    x = 188,310.17

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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.