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Finding the Third Proportional to 98,915,221 and 151,310,136

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Solution

The third proportional to 98,915,221 and 151,310,136 is: 231,458,384.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,915,221 : 151,310,136 = 151,310,136 : x
  2. Step 2: Convert to fraction form
    98,915,221/151,310,136 = 151,310,136/x
  3. Step 3: Cross multiply
    98,915,221x = 151,310,136 × 151,310,136
  4. Step 4: Simplify right side
    98,915,221x = 22,894,757,256,338,496
  5. Step 5: Solve for x
    x = 22,894,757,256,338,496/98,915,221
  6. Step 6: Final answer
    x = 231,458,384.51

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.