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Finding the Third Proportional to 84,731.06 and 131,275.69

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Solution

The third proportional to 84,731.06 and 131,275.69 is: 203,388.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,731.06 : 131,275.69 = 131,275.69 : x
  2. Step 2: Convert to fraction form
    84,731.06/131,275.69 = 131,275.69/x
  3. Step 3: Cross multiply
    84,731.06x = 131,275.69 × 131,275.69
  4. Step 4: Simplify right side
    84,731.06x = 17,233,306,128.60
  5. Step 5: Solve for x
    x = 17,233,306,128.60/84,731.06
  6. Step 6: Final answer
    x = 203,388.29

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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.