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Finding the Fourth Proportional to 93,906.81, 140,672.43 and 56,446.56

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Solution

The fourth proportional to 93,906.81, 140,672.43 and 56,446.56 is: 84,556.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,906.81 : 140,672.43 = 56,446.56 : x
  2. Step 2: Convert to fraction form
    93,906.81/140,672.43 = 56,446.56/x
  3. Step 3: Cross multiply
    93,906.81x = 140,672.43 × 56,446.56
  4. Step 4: Simplify right side
    93,906.81x = 7,940,474,760.34
  5. Step 5: Solve for x
    x = 7,940,474,760.34/93,906.81
  6. Step 6: Final answer
    x = 84,556.96

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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.