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Finding the Third Proportional to 111,072,136.50 and 239,212,984.50

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Solution

The third proportional to 111,072,136.50 and 239,212,984.50 is: 515,186,380.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,072,136.50 : 239,212,984.50 = 239,212,984.50 : x
  2. Step 2: Convert to fraction form
    111,072,136.50/239,212,984.50 = 239,212,984.50/x
  3. Step 3: Cross multiply
    111,072,136.50x = 239,212,984.50 × 239,212,984.50
  4. Step 4: Simplify right side
    111,072,136.50x = 57,222,851,953,397,240
  5. Step 5: Solve for x
    x = 57,222,851,953,397,240/111,072,136.50
  6. Step 6: Final answer
    x = 515,186,380.28

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.