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Finding the Fourth Proportional to 133,861.92, 200,890.14 and 107,880.36

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Solution

The fourth proportional to 133,861.92, 200,890.14 and 107,880.36 is: 161,898.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,861.92 : 200,890.14 = 107,880.36 : x
  2. Step 2: Convert to fraction form
    133,861.92/200,890.14 = 107,880.36/x
  3. Step 3: Cross multiply
    133,861.92x = 200,890.14 × 107,880.36
  4. Step 4: Simplify right side
    133,861.92x = 21,672,100,623.65
  5. Step 5: Solve for x
    x = 21,672,100,623.65/133,861.92
  6. Step 6: Final answer
    x = 161,898.92

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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.