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Finding the Third Proportional to 58,218.75 and 121,358.25

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Solution

The third proportional to 58,218.75 and 121,358.25 is: 252,973.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,218.75 : 121,358.25 = 121,358.25 : x
  2. Step 2: Convert to fraction form
    58,218.75/121,358.25 = 121,358.25/x
  3. Step 3: Cross multiply
    58,218.75x = 121,358.25 × 121,358.25
  4. Step 4: Simplify right side
    58,218.75x = 14,727,824,843.06
  5. Step 5: Solve for x
    x = 14,727,824,843.06/58,218.75
  6. Step 6: Final answer
    x = 252,973.91

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.