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Finding the Third Proportional to 156,454.50 and 336,495.75

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Solution

The third proportional to 156,454.50 and 336,495.75 is: 723,720.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,454.50 : 336,495.75 = 336,495.75 : x
  2. Step 2: Convert to fraction form
    156,454.50/336,495.75 = 336,495.75/x
  3. Step 3: Cross multiply
    156,454.50x = 336,495.75 × 336,495.75
  4. Step 4: Simplify right side
    156,454.50x = 113,229,389,768.06
  5. Step 5: Solve for x
    x = 113,229,389,768.06/156,454.50
  6. Step 6: Final answer
    x = 723,720.89

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.