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Finding the Third Proportional to 53,640.56 and 117,784.13

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Solution

The third proportional to 53,640.56 and 117,784.13 is: 258,630.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,640.56 : 117,784.13 = 117,784.13 : x
  2. Step 2: Convert to fraction form
    53,640.56/117,784.13 = 117,784.13/x
  3. Step 3: Cross multiply
    53,640.56x = 117,784.13 × 117,784.13
  4. Step 4: Simplify right side
    53,640.56x = 13,873,100,102.02
  5. Step 5: Solve for x
    x = 13,873,100,102.02/53,640.56
  6. Step 6: Final answer
    x = 258,630.77

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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.