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Finding the Third Proportional to 100,953 and 156,760

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Solution

The third proportional to 100,953 and 156,760 is: 243,417.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,953 : 156,760 = 156,760 : x
  2. Step 2: Convert to fraction form
    100,953/156,760 = 156,760/x
  3. Step 3: Cross multiply
    100,953x = 156,760 × 156,760
  4. Step 4: Simplify right side
    100,953x = 24,573,697,600
  5. Step 5: Solve for x
    x = 24,573,697,600/100,953
  6. Step 6: Final answer
    x = 243,417.21

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.