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Finding the Third Proportional to 55,116 and 121,032

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Solution

The third proportional to 55,116 and 121,032 is: 265,780.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,116 : 121,032 = 121,032 : x
  2. Step 2: Convert to fraction form
    55,116/121,032 = 121,032/x
  3. Step 3: Cross multiply
    55,116x = 121,032 × 121,032
  4. Step 4: Simplify right side
    55,116x = 14,648,745,024
  5. Step 5: Solve for x
    x = 14,648,745,024/55,116
  6. Step 6: Final answer
    x = 265,780.26

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.