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Finding the Third Proportional to 76,881.75 and 166,399.13

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Solution

The third proportional to 76,881.75 and 166,399.13 is: 360,146.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,881.75 : 166,399.13 = 166,399.13 : x
  2. Step 2: Convert to fraction form
    76,881.75/166,399.13 = 166,399.13/x
  3. Step 3: Cross multiply
    76,881.75x = 166,399.13 × 166,399.13
  4. Step 4: Simplify right side
    76,881.75x = 27,688,668,800.77
  5. Step 5: Solve for x
    x = 27,688,668,800.77/76,881.75
  6. Step 6: Final answer
    x = 360,146.18

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.