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Finding the Third Proportional to 157,908,872 and 352,126,111

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Solution

The third proportional to 157,908,872 and 352,126,111 is: 785,217,426.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,908,872 : 352,126,111 = 352,126,111 : x
  2. Step 2: Convert to fraction form
    157,908,872/352,126,111 = 352,126,111/x
  3. Step 3: Cross multiply
    157,908,872x = 352,126,111 × 352,126,111
  4. Step 4: Simplify right side
    157,908,872x = 123,992,798,047,984,320
  5. Step 5: Solve for x
    x = 123,992,798,047,984,320/157,908,872
  6. Step 6: Final answer
    x = 785,217,426.21

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.