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Finding the Fourth Proportional to 68,856.19, 103,285.41 and 23,878.96

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Solution

The fourth proportional to 68,856.19, 103,285.41 and 23,878.96 is: 35,818.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,856.19 : 103,285.41 = 23,878.96 : x
  2. Step 2: Convert to fraction form
    68,856.19/103,285.41 = 23,878.96/x
  3. Step 3: Cross multiply
    68,856.19x = 103,285.41 × 23,878.96
  4. Step 4: Simplify right side
    68,856.19x = 2,466,348,173.97
  5. Step 5: Solve for x
    x = 2,466,348,173.97/68,856.19
  6. Step 6: Final answer
    x = 35,818.83

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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.