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Finding the Third Proportional to 104,478 and 156,716

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Solution

The third proportional to 104,478 and 156,716 is: 235,072.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,478 : 156,716 = 156,716 : x
  2. Step 2: Convert to fraction form
    104,478/156,716 = 156,716/x
  3. Step 3: Cross multiply
    104,478x = 156,716 × 156,716
  4. Step 4: Simplify right side
    104,478x = 24,559,904,656
  5. Step 5: Solve for x
    x = 24,559,904,656/104,478
  6. Step 6: Final answer
    x = 235,072.50

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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.