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Finding the Fourth Proportional to 250,990.86, 376,532.49 and 82,520.70

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Solution

The fourth proportional to 250,990.86, 376,532.49 and 82,520.70 is: 123,796.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,990.86 : 376,532.49 = 82,520.70 : x
  2. Step 2: Convert to fraction form
    250,990.86/376,532.49 = 82,520.70/x
  3. Step 3: Cross multiply
    250,990.86x = 376,532.49 × 82,520.70
  4. Step 4: Simplify right side
    250,990.86x = 31,071,724,647.54
  5. Step 5: Solve for x
    x = 31,071,724,647.54/250,990.86
  6. Step 6: Final answer
    x = 123,796.24

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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.