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Finding the Fourth Proportional to 362,496.80, 543,745.20 and 125,863.40

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Solution

The fourth proportional to 362,496.80, 543,745.20 and 125,863.40 is: 188,795.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,496.80 : 543,745.20 = 125,863.40 : x
  2. Step 2: Convert to fraction form
    362,496.80/543,745.20 = 125,863.40/x
  3. Step 3: Cross multiply
    362,496.80x = 543,745.20 × 125,863.40
  4. Step 4: Simplify right side
    362,496.80x = 68,437,619,605.68
  5. Step 5: Solve for x
    x = 68,437,619,605.68/362,496.80
  6. Step 6: Final answer
    x = 188,795.10

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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.