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Finding the Fourth Proportional to 68,669.76, 94,773.87 and 49,611.21

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Solution

The fourth proportional to 68,669.76, 94,773.87 and 49,611.21 is: 68,470.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,669.76 : 94,773.87 = 49,611.21 : x
  2. Step 2: Convert to fraction form
    68,669.76/94,773.87 = 49,611.21/x
  3. Step 3: Cross multiply
    68,669.76x = 94,773.87 × 49,611.21
  4. Step 4: Simplify right side
    68,669.76x = 4,701,846,367.08
  5. Step 5: Solve for x
    x = 4,701,846,367.08/68,669.76
  6. Step 6: Final answer
    x = 68,470.41

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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.