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Finding the Fourth Proportional to 251,158.44, 376,695.76 and 82,680.60

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Solution

The fourth proportional to 251,158.44, 376,695.76 and 82,680.60 is: 124,007.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,158.44 : 376,695.76 = 82,680.60 : x
  2. Step 2: Convert to fraction form
    251,158.44/376,695.76 = 82,680.60/x
  3. Step 3: Cross multiply
    251,158.44x = 376,695.76 × 82,680.60
  4. Step 4: Simplify right side
    251,158.44x = 31,145,431,454.26
  5. Step 5: Solve for x
    x = 31,145,431,454.26/251,158.44
  6. Step 6: Final answer
    x = 124,007.11

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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.