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Finding the Third Proportional to 168,272,172 and 258,486,570

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Solution

The third proportional to 168,272,172 and 258,486,570 is: 397,066,883.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,272,172 : 258,486,570 = 258,486,570 : x
  2. Step 2: Convert to fraction form
    168,272,172/258,486,570 = 258,486,570/x
  3. Step 3: Cross multiply
    168,272,172x = 258,486,570 × 258,486,570
  4. Step 4: Simplify right side
    168,272,172x = 66,815,306,870,364,896
  5. Step 5: Solve for x
    x = 66,815,306,870,364,896/168,272,172
  6. Step 6: Final answer
    x = 397,066,883.23

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.