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Finding the Third Proportional to 84,555 and 130,011.75

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Solution

The third proportional to 84,555 and 130,011.75 is: 199,906.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,555 : 130,011.75 = 130,011.75 : x
  2. Step 2: Convert to fraction form
    84,555/130,011.75 = 130,011.75/x
  3. Step 3: Cross multiply
    84,555x = 130,011.75 × 130,011.75
  4. Step 4: Simplify right side
    84,555x = 16,903,055,138.06
  5. Step 5: Solve for x
    x = 16,903,055,138.06/84,555
  6. Step 6: Final answer
    x = 199,906.04

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.