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Finding the Third Proportional to 161,547,986 and 250,619,019

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Solution

The third proportional to 161,547,986 and 250,619,019 is: 388,800,221.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,547,986 : 250,619,019 = 250,619,019 : x
  2. Step 2: Convert to fraction form
    161,547,986/250,619,019 = 250,619,019/x
  3. Step 3: Cross multiply
    161,547,986x = 250,619,019 × 250,619,019
  4. Step 4: Simplify right side
    161,547,986x = 62,809,892,684,522,360
  5. Step 5: Solve for x
    x = 62,809,892,684,522,360/161,547,986
  6. Step 6: Final answer
    x = 388,800,221.16

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.