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Finding the Third Proportional to 43,431,509 and 90,435,514

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Solution

The third proportional to 43,431,509 and 90,435,514 is: 188,309,878.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,431,509 : 90,435,514 = 90,435,514 : x
  2. Step 2: Convert to fraction form
    43,431,509/90,435,514 = 90,435,514/x
  3. Step 3: Cross multiply
    43,431,509x = 90,435,514 × 90,435,514
  4. Step 4: Simplify right side
    43,431,509x = 8,178,582,192,444,196
  5. Step 5: Solve for x
    x = 8,178,582,192,444,196/43,431,509
  6. Step 6: Final answer
    x = 188,309,878.72

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.