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Finding the Fourth Proportional to 362,611.80, 543,835.71 and 137,892.15

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Solution

The fourth proportional to 362,611.80, 543,835.71 and 137,892.15 is: 206,807.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,611.80 : 543,835.71 = 137,892.15 : x
  2. Step 2: Convert to fraction form
    362,611.80/543,835.71 = 137,892.15/x
  3. Step 3: Cross multiply
    362,611.80x = 543,835.71 × 137,892.15
  4. Step 4: Simplify right side
    362,611.80x = 74,990,675,298.68
  5. Step 5: Solve for x
    x = 74,990,675,298.68/362,611.80
  6. Step 6: Final answer
    x = 206,807.05

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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.