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Finding the Third Proportional to 71,050 and 156,921

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Solution

The third proportional to 71,050 and 156,921 is: 346,575.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,050 : 156,921 = 156,921 : x
  2. Step 2: Convert to fraction form
    71,050/156,921 = 156,921/x
  3. Step 3: Cross multiply
    71,050x = 156,921 × 156,921
  4. Step 4: Simplify right side
    71,050x = 24,624,200,241
  5. Step 5: Solve for x
    x = 24,624,200,241/71,050
  6. Step 6: Final answer
    x = 346,575.65

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.