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Finding the Third Proportional to 113,679 and 170,520

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Solution

The third proportional to 113,679 and 170,520 is: 255,782.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,679 : 170,520 = 170,520 : x
  2. Step 2: Convert to fraction form
    113,679/170,520 = 170,520/x
  3. Step 3: Cross multiply
    113,679x = 170,520 × 170,520
  4. Step 4: Simplify right side
    113,679x = 29,077,070,400
  5. Step 5: Solve for x
    x = 29,077,070,400/113,679
  6. Step 6: Final answer
    x = 255,782.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.