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Finding the Third Proportional to 102,553 and 155,246

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Solution

The third proportional to 102,553 and 155,246 is: 235,013.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,553 : 155,246 = 155,246 : x
  2. Step 2: Convert to fraction form
    102,553/155,246 = 155,246/x
  3. Step 3: Cross multiply
    102,553x = 155,246 × 155,246
  4. Step 4: Simplify right side
    102,553x = 24,101,320,516
  5. Step 5: Solve for x
    x = 24,101,320,516/102,553
  6. Step 6: Final answer
    x = 235,013.32

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.