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Finding the Third Proportional to 45,127,078 and 87,987,020

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Solution

The third proportional to 45,127,078 and 87,987,020 is: 171,553,666.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,127,078 : 87,987,020 = 87,987,020 : x
  2. Step 2: Convert to fraction form
    45,127,078/87,987,020 = 87,987,020/x
  3. Step 3: Cross multiply
    45,127,078x = 87,987,020 × 87,987,020
  4. Step 4: Simplify right side
    45,127,078x = 7,741,715,688,480,400
  5. Step 5: Solve for x
    x = 7,741,715,688,480,400/45,127,078
  6. Step 6: Final answer
    x = 171,553,666.48

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.