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Finding the Third Proportional to 71,940,657.75 and 111,348,768.75

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Solution

The third proportional to 71,940,657.75 and 111,348,768.75 is: 172,344,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,940,657.75 : 111,348,768.75 = 111,348,768.75 : x
  2. Step 2: Convert to fraction form
    71,940,657.75/111,348,768.75 = 111,348,768.75/x
  3. Step 3: Cross multiply
    71,940,657.75x = 111,348,768.75 × 111,348,768.75
  4. Step 4: Simplify right side
    71,940,657.75x = 12,398,548,302,140,976
  5. Step 5: Solve for x
    x = 12,398,548,302,140,976/71,940,657.75
  6. Step 6: Final answer
    x = 172,344,105.40

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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.