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Finding the Third Proportional to 56,155 and 121,058

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Solution

The third proportional to 56,155 and 121,058 is: 260,974.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,155 : 121,058 = 121,058 : x
  2. Step 2: Convert to fraction form
    56,155/121,058 = 121,058/x
  3. Step 3: Cross multiply
    56,155x = 121,058 × 121,058
  4. Step 4: Simplify right side
    56,155x = 14,655,039,364
  5. Step 5: Solve for x
    x = 14,655,039,364/56,155
  6. Step 6: Final answer
    x = 260,974.79

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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.