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Finding the Third Proportional to 189,647,831.25 and 413,753,852.25

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Solution

The third proportional to 189,647,831.25 and 413,753,852.25 is: 902,684,987.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,647,831.25 : 413,753,852.25 = 413,753,852.25 : x
  2. Step 2: Convert to fraction form
    189,647,831.25/413,753,852.25 = 413,753,852.25/x
  3. Step 3: Cross multiply
    189,647,831.25x = 413,753,852.25 × 413,753,852.25
  4. Step 4: Simplify right side
    189,647,831.25x = 171,192,250,251,714,816
  5. Step 5: Solve for x
    x = 171,192,250,251,714,816/189,647,831.25
  6. Step 6: Final answer
    x = 902,684,987.87

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.