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Finding the Fourth Proportional to 273,099.40, 409,908.30 and 168,123.40

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Solution

The fourth proportional to 273,099.40, 409,908.30 and 168,123.40 is: 252,344.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,099.40 : 409,908.30 = 168,123.40 : x
  2. Step 2: Convert to fraction form
    273,099.40/409,908.30 = 168,123.40/x
  3. Step 3: Cross multiply
    273,099.40x = 409,908.30 × 168,123.40
  4. Step 4: Simplify right side
    273,099.40x = 68,915,177,084.22
  5. Step 5: Solve for x
    x = 68,915,177,084.22/273,099.40
  6. Step 6: Final answer
    x = 252,344.67

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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.