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Finding the Fourth Proportional to 251,079.96, 376,642.06 and 71,167.80

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Solution

The fourth proportional to 251,079.96, 376,642.06 and 71,167.80 is: 106,757.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,079.96 : 376,642.06 = 71,167.80 : x
  2. Step 2: Convert to fraction form
    251,079.96/376,642.06 = 71,167.80/x
  3. Step 3: Cross multiply
    251,079.96x = 376,642.06 × 71,167.80
  4. Step 4: Simplify right side
    251,079.96x = 26,804,786,797.67
  5. Step 5: Solve for x
    x = 26,804,786,797.67/251,079.96
  6. Step 6: Final answer
    x = 106,757.97

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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.