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Finding the Fourth Proportional to 68,717.17, 103,011.11 and 37,079.82

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Solution

The fourth proportional to 68,717.17, 103,011.11 and 37,079.82 is: 55,584.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,717.17 : 103,011.11 = 37,079.82 : x
  2. Step 2: Convert to fraction form
    68,717.17/103,011.11 = 37,079.82/x
  3. Step 3: Cross multiply
    68,717.17x = 103,011.11 × 37,079.82
  4. Step 4: Simplify right side
    68,717.17x = 3,819,633,370.45
  5. Step 5: Solve for x
    x = 3,819,633,370.45/68,717.17
  6. Step 6: Final answer
    x = 55,584.85

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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.