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Finding the Third Proportional to 100,855 and 156,160

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Solution

The third proportional to 100,855 and 156,160 is: 241,792.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,855 : 156,160 = 156,160 : x
  2. Step 2: Convert to fraction form
    100,855/156,160 = 156,160/x
  3. Step 3: Cross multiply
    100,855x = 156,160 × 156,160
  4. Step 4: Simplify right side
    100,855x = 24,385,945,600
  5. Step 5: Solve for x
    x = 24,385,945,600/100,855
  6. Step 6: Final answer
    x = 241,792.13

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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.