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Finding the Fourth Proportional to 362,438.12, 543,675.90 and 92,568.78

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Solution

The fourth proportional to 362,438.12, 543,675.90 and 92,568.78 is: 138,857.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,438.12 : 543,675.90 = 92,568.78 : x
  2. Step 2: Convert to fraction form
    362,438.12/543,675.90 = 92,568.78/x
  3. Step 3: Cross multiply
    362,438.12x = 543,675.90 × 92,568.78
  4. Step 4: Simplify right side
    362,438.12x = 50,327,414,778.40
  5. Step 5: Solve for x
    x = 50,327,414,778.40/362,438.12
  6. Step 6: Final answer
    x = 138,857.95

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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.