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Finding the Third Proportional to 67,620.56 and 105,258.19

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Solution

The third proportional to 67,620.56 and 105,258.19 is: 163,844.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,620.56 : 105,258.19 = 105,258.19 : x
  2. Step 2: Convert to fraction form
    67,620.56/105,258.19 = 105,258.19/x
  3. Step 3: Cross multiply
    67,620.56x = 105,258.19 × 105,258.19
  4. Step 4: Simplify right side
    67,620.56x = 11,079,286,035.79
  5. Step 5: Solve for x
    x = 11,079,286,035.79/67,620.56
  6. Step 6: Final answer
    x = 163,844.93

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.