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Finding the Third Proportional to 117,216 and 253,872

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Solution

The third proportional to 117,216 and 253,872 is: 549,848.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,216 : 253,872 = 253,872 : x
  2. Step 2: Convert to fraction form
    117,216/253,872 = 253,872/x
  3. Step 3: Cross multiply
    117,216x = 253,872 × 253,872
  4. Step 4: Simplify right side
    117,216x = 64,450,992,384
  5. Step 5: Solve for x
    x = 64,450,992,384/117,216
  6. Step 6: Final answer
    x = 549,848.08

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.