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Finding the Third Proportional to 55,481.63 and 121,342.50

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Solution

The third proportional to 55,481.63 and 121,342.50 is: 265,385.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,481.63 : 121,342.50 = 121,342.50 : x
  2. Step 2: Convert to fraction form
    55,481.63/121,342.50 = 121,342.50/x
  3. Step 3: Cross multiply
    55,481.63x = 121,342.50 × 121,342.50
  4. Step 4: Simplify right side
    55,481.63x = 14,724,002,306.25
  5. Step 5: Solve for x
    x = 14,724,002,306.25/55,481.63
  6. Step 6: Final answer
    x = 265,385.20

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.