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Finding the Third Proportional to 55,268,074 and 86,688,651

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Solution

The third proportional to 55,268,074 and 86,688,651 is: 135,972,210.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,268,074 : 86,688,651 = 86,688,651 : x
  2. Step 2: Convert to fraction form
    55,268,074/86,688,651 = 86,688,651/x
  3. Step 3: Cross multiply
    55,268,074x = 86,688,651 × 86,688,651
  4. Step 4: Simplify right side
    55,268,074x = 7,514,922,212,199,801
  5. Step 5: Solve for x
    x = 7,514,922,212,199,801/55,268,074
  6. Step 6: Final answer
    x = 135,972,210.87

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.