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Finding the Third Proportional to 86,762.81 and 131,236.88

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Solution

The third proportional to 86,762.81 and 131,236.88 is: 198,508.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,762.81 : 131,236.88 = 131,236.88 : x
  2. Step 2: Convert to fraction form
    86,762.81/131,236.88 = 131,236.88/x
  3. Step 3: Cross multiply
    86,762.81x = 131,236.88 × 131,236.88
  4. Step 4: Simplify right side
    86,762.81x = 17,223,117,359.77
  5. Step 5: Solve for x
    x = 17,223,117,359.77/86,762.81
  6. Step 6: Final answer
    x = 198,508.06

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.