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Finding the Fourth Proportional to 74,180.73, 102,362.79 and 43,960.94

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Solution

The fourth proportional to 74,180.73, 102,362.79 and 43,960.94 is: 60,662.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,180.73 : 102,362.79 = 43,960.94 : x
  2. Step 2: Convert to fraction form
    74,180.73/102,362.79 = 43,960.94/x
  3. Step 3: Cross multiply
    74,180.73x = 102,362.79 × 43,960.94
  4. Step 4: Simplify right side
    74,180.73x = 4,499,964,469.42
  5. Step 5: Solve for x
    x = 4,499,964,469.42/74,180.73
  6. Step 6: Final answer
    x = 60,662.18

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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.