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Finding the Third Proportional to 45,278,979 and 70,608,891

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Solution

The third proportional to 45,278,979 and 70,608,891 is: 110,108,831.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,278,979 : 70,608,891 = 70,608,891 : x
  2. Step 2: Convert to fraction form
    45,278,979/70,608,891 = 70,608,891/x
  3. Step 3: Cross multiply
    45,278,979x = 70,608,891 × 70,608,891
  4. Step 4: Simplify right side
    45,278,979x = 4,985,615,488,249,881
  5. Step 5: Solve for x
    x = 4,985,615,488,249,881/45,278,979
  6. Step 6: Final answer
    x = 110,108,831.92

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.