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Finding the Fourth Proportional to 250,617.67, 376,004.45 and 82,139.47

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Solution

The fourth proportional to 250,617.67, 376,004.45 and 82,139.47 is: 123,234.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,617.67 : 376,004.45 = 82,139.47 : x
  2. Step 2: Convert to fraction form
    250,617.67/376,004.45 = 82,139.47/x
  3. Step 3: Cross multiply
    250,617.67x = 376,004.45 × 82,139.47
  4. Step 4: Simplify right side
    250,617.67x = 30,884,806,240.64
  5. Step 5: Solve for x
    x = 30,884,806,240.64/250,617.67
  6. Step 6: Final answer
    x = 123,234.75

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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.