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Finding the Third Proportional to 89,850,759 and 128,398,816

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Solution

The third proportional to 89,850,759 and 128,398,816 is: 183,484,882.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,850,759 : 128,398,816 = 128,398,816 : x
  2. Step 2: Convert to fraction form
    89,850,759/128,398,816 = 128,398,816/x
  3. Step 3: Cross multiply
    89,850,759x = 128,398,816 × 128,398,816
  4. Step 4: Simplify right side
    89,850,759x = 16,486,255,950,201,856
  5. Step 5: Solve for x
    x = 16,486,255,950,201,856/89,850,759
  6. Step 6: Final answer
    x = 183,484,882.42

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.