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Finding the Third Proportional to 99,126,321 and 214,724,370

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Solution

The third proportional to 99,126,321 and 214,724,370 is: 465,129,287.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,126,321 : 214,724,370 = 214,724,370 : x
  2. Step 2: Convert to fraction form
    99,126,321/214,724,370 = 214,724,370/x
  3. Step 3: Cross multiply
    99,126,321x = 214,724,370 × 214,724,370
  4. Step 4: Simplify right side
    99,126,321x = 46,106,555,071,896,896
  5. Step 5: Solve for x
    x = 46,106,555,071,896,896/99,126,321
  6. Step 6: Final answer
    x = 465,129,287.63

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.