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Finding the Third Proportional to 63,975,708 and 138,145,540

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Solution

The third proportional to 63,975,708 and 138,145,540 is: 298,303,697.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,975,708 : 138,145,540 = 138,145,540 : x
  2. Step 2: Convert to fraction form
    63,975,708/138,145,540 = 138,145,540/x
  3. Step 3: Cross multiply
    63,975,708x = 138,145,540 × 138,145,540
  4. Step 4: Simplify right side
    63,975,708x = 19,084,190,221,891,600
  5. Step 5: Solve for x
    x = 19,084,190,221,891,600/63,975,708
  6. Step 6: Final answer
    x = 298,303,697.11

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.