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Finding the Fourth Proportional to 68,205.76, 94,109.11 and 41,354.87

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Solution

The fourth proportional to 68,205.76, 94,109.11 and 41,354.87 is: 57,060.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,205.76 : 94,109.11 = 41,354.87 : x
  2. Step 2: Convert to fraction form
    68,205.76/94,109.11 = 41,354.87/x
  3. Step 3: Cross multiply
    68,205.76x = 94,109.11 × 41,354.87
  4. Step 4: Simplify right side
    68,205.76x = 3,891,869,803.09
  5. Step 5: Solve for x
    x = 3,891,869,803.09/68,205.76
  6. Step 6: Final answer
    x = 57,060.72

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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.