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Finding the Third Proportional to 55,870,238 and 122,129,212

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Solution

The third proportional to 55,870,238 and 122,129,212 is: 266,967,619.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,870,238 : 122,129,212 = 122,129,212 : x
  2. Step 2: Convert to fraction form
    55,870,238/122,129,212 = 122,129,212/x
  3. Step 3: Cross multiply
    55,870,238x = 122,129,212 × 122,129,212
  4. Step 4: Simplify right side
    55,870,238x = 14,915,544,423,740,944
  5. Step 5: Solve for x
    x = 14,915,544,423,740,944/55,870,238
  6. Step 6: Final answer
    x = 266,967,619.21

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.