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Finding the Third Proportional to 122,384.25 and 189,134.25

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Solution

The third proportional to 122,384.25 and 189,134.25 is: 292,290.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,384.25 : 189,134.25 = 189,134.25 : x
  2. Step 2: Convert to fraction form
    122,384.25/189,134.25 = 189,134.25/x
  3. Step 3: Cross multiply
    122,384.25x = 189,134.25 × 189,134.25
  4. Step 4: Simplify right side
    122,384.25x = 35,771,764,523.06
  5. Step 5: Solve for x
    x = 35,771,764,523.06/122,384.25
  6. Step 6: Final answer
    x = 292,290.59

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.