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Finding the Third Proportional to 113,669 and 172,083

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Solution

The third proportional to 113,669 and 172,083 is: 260,515.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,669 : 172,083 = 172,083 : x
  2. Step 2: Convert to fraction form
    113,669/172,083 = 172,083/x
  3. Step 3: Cross multiply
    113,669x = 172,083 × 172,083
  4. Step 4: Simplify right side
    113,669x = 29,612,558,889
  5. Step 5: Solve for x
    x = 29,612,558,889/113,669
  6. Step 6: Final answer
    x = 260,515.70

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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.