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Finding the Third Proportional to 70,479.49 and 109,057.40

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Solution

The third proportional to 70,479.49 and 109,057.40 is: 168,751.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,479.49 : 109,057.40 = 109,057.40 : x
  2. Step 2: Convert to fraction form
    70,479.49/109,057.40 = 109,057.40/x
  3. Step 3: Cross multiply
    70,479.49x = 109,057.40 × 109,057.40
  4. Step 4: Simplify right side
    70,479.49x = 11,893,517,218.97
  5. Step 5: Solve for x
    x = 11,893,517,218.97/70,479.49
  6. Step 6: Final answer
    x = 168,751.46

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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.