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Finding the Third Proportional to 156,546.75 and 342,631.50

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Solution

The third proportional to 156,546.75 and 342,631.50 is: 749,912.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,546.75 : 342,631.50 = 342,631.50 : x
  2. Step 2: Convert to fraction form
    156,546.75/342,631.50 = 342,631.50/x
  3. Step 3: Cross multiply
    156,546.75x = 342,631.50 × 342,631.50
  4. Step 4: Simplify right side
    156,546.75x = 117,396,344,792.25
  5. Step 5: Solve for x
    x = 117,396,344,792.25/156,546.75
  6. Step 6: Final answer
    x = 749,912.37

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.