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Finding the Fourth Proportional to 68,375.59, 102,226.21 and 57,961.82

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Solution

The fourth proportional to 68,375.59, 102,226.21 and 57,961.82 is: 86,656.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,375.59 : 102,226.21 = 57,961.82 : x
  2. Step 2: Convert to fraction form
    68,375.59/102,226.21 = 57,961.82/x
  3. Step 3: Cross multiply
    68,375.59x = 102,226.21 × 57,961.82
  4. Step 4: Simplify right side
    68,375.59x = 5,925,217,293.96
  5. Step 5: Solve for x
    x = 5,925,217,293.96/68,375.59
  6. Step 6: Final answer
    x = 86,656.91

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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.