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Finding the Fourth Proportional to 166,586, 229,892.01 and 91,136.12

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Solution

The fourth proportional to 166,586, 229,892.01 and 91,136.12 is: 125,769.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,586 : 229,892.01 = 91,136.12 : x
  2. Step 2: Convert to fraction form
    166,586/229,892.01 = 91,136.12/x
  3. Step 3: Cross multiply
    166,586x = 229,892.01 × 91,136.12
  4. Step 4: Simplify right side
    166,586x = 20,951,465,810.40
  5. Step 5: Solve for x
    x = 20,951,465,810.40/166,586
  6. Step 6: Final answer
    x = 125,769.67

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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.