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Finding the Third Proportional to 53,578.13 and 117,731.25

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Solution

The third proportional to 53,578.13 and 117,731.25 is: 258,699.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,578.13 : 117,731.25 = 117,731.25 : x
  2. Step 2: Convert to fraction form
    53,578.13/117,731.25 = 117,731.25/x
  3. Step 3: Cross multiply
    53,578.13x = 117,731.25 × 117,731.25
  4. Step 4: Simplify right side
    53,578.13x = 13,860,647,226.56
  5. Step 5: Solve for x
    x = 13,860,647,226.56/53,578.13
  6. Step 6: Final answer
    x = 258,699.74

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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.