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Finding the Third Proportional to 104,455.50 and 156,915

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Solution

The third proportional to 104,455.50 and 156,915 is: 235,720.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,455.50 : 156,915 = 156,915 : x
  2. Step 2: Convert to fraction form
    104,455.50/156,915 = 156,915/x
  3. Step 3: Cross multiply
    104,455.50x = 156,915 × 156,915
  4. Step 4: Simplify right side
    104,455.50x = 24,622,317,225
  5. Step 5: Solve for x
    x = 24,622,317,225/104,455.50
  6. Step 6: Final answer
    x = 235,720.64

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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.