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Finding the Fourth Proportional to 68,960.62, 103,441.30 and 27,407.74

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Solution

The fourth proportional to 68,960.62, 103,441.30 and 27,407.74 is: 41,111.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,960.62 : 103,441.30 = 27,407.74 : x
  2. Step 2: Convert to fraction form
    68,960.62/103,441.30 = 27,407.74/x
  3. Step 3: Cross multiply
    68,960.62x = 103,441.30 × 27,407.74
  4. Step 4: Simplify right side
    68,960.62x = 2,835,092,255.66
  5. Step 5: Solve for x
    x = 2,835,092,255.66/68,960.62
  6. Step 6: Final answer
    x = 41,111.76

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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.