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Finding the Fourth Proportional to 251,239.61, 376,917.66 and 82,753.88

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Solution

The fourth proportional to 251,239.61, 376,917.66 and 82,753.88 is: 124,150.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,239.61 : 376,917.66 = 82,753.88 : x
  2. Step 2: Convert to fraction form
    251,239.61/376,917.66 = 82,753.88/x
  3. Step 3: Cross multiply
    251,239.61x = 376,917.66 × 82,753.88
  4. Step 4: Simplify right side
    251,239.61x = 31,191,396,920.93
  5. Step 5: Solve for x
    x = 31,191,396,920.93/251,239.61
  6. Step 6: Final answer
    x = 124,150.00

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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.