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Finding the Third Proportional to 63,968,940 and 91,168,578

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Solution

The third proportional to 63,968,940 and 91,168,578 is: 129,933,521.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,968,940 : 91,168,578 = 91,168,578 : x
  2. Step 2: Convert to fraction form
    63,968,940/91,168,578 = 91,168,578/x
  3. Step 3: Cross multiply
    63,968,940x = 91,168,578 × 91,168,578
  4. Step 4: Simplify right side
    63,968,940x = 8,311,709,614,542,084
  5. Step 5: Solve for x
    x = 8,311,709,614,542,084/63,968,940
  6. Step 6: Final answer
    x = 129,933,521.09

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.