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Finding the Fourth Proportional to 68,878.41, 95,027.76 and 45,018.85

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Solution

The fourth proportional to 68,878.41, 95,027.76 and 45,018.85 is: 62,110.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,878.41 : 95,027.76 = 45,018.85 : x
  2. Step 2: Convert to fraction form
    68,878.41/95,027.76 = 45,018.85/x
  3. Step 3: Cross multiply
    68,878.41x = 95,027.76 × 45,018.85
  4. Step 4: Simplify right side
    68,878.41x = 4,278,040,473.28
  5. Step 5: Solve for x
    x = 4,278,040,473.28/68,878.41
  6. Step 6: Final answer
    x = 62,110.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.