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Finding the Third Proportional to 56,980 and 121,736

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Solution

The third proportional to 56,980 and 121,736 is: 260,085.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,980 : 121,736 = 121,736 : x
  2. Step 2: Convert to fraction form
    56,980/121,736 = 121,736/x
  3. Step 3: Cross multiply
    56,980x = 121,736 × 121,736
  4. Step 4: Simplify right side
    56,980x = 14,819,653,696
  5. Step 5: Solve for x
    x = 14,819,653,696/56,980
  6. Step 6: Final answer
    x = 260,085.18

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.