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Finding the Third Proportional to 55,916 and 121,058

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Solution

The third proportional to 55,916 and 121,058 is: 262,090.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,916 : 121,058 = 121,058 : x
  2. Step 2: Convert to fraction form
    55,916/121,058 = 121,058/x
  3. Step 3: Cross multiply
    55,916x = 121,058 × 121,058
  4. Step 4: Simplify right side
    55,916x = 14,655,039,364
  5. Step 5: Solve for x
    x = 14,655,039,364/55,916
  6. Step 6: Final answer
    x = 262,090.27

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.