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Finding the Fourth Proportional to 68,921.73, 95,100.60 and 40,632.90

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Solution

The fourth proportional to 68,921.73, 95,100.60 and 40,632.90 is: 56,066.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,921.73 : 95,100.60 = 40,632.90 : x
  2. Step 2: Convert to fraction form
    68,921.73/95,100.60 = 40,632.90/x
  3. Step 3: Cross multiply
    68,921.73x = 95,100.60 × 40,632.90
  4. Step 4: Simplify right side
    68,921.73x = 3,864,213,169.74
  5. Step 5: Solve for x
    x = 3,864,213,169.74/68,921.73
  6. Step 6: Final answer
    x = 56,066.69

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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.