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Finding the Fourth Proportional to 215,086,083,940.80, 322,629,125,911.20 and 215,086,083,940.80

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Solution

The fourth proportional to 215,086,083,940.80, 322,629,125,911.20 and 215,086,083,940.80 is: 322,629,125,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,086,083,940.80 : 322,629,125,911.20 = 215,086,083,940.80 : x
  2. Step 2: Convert to fraction form
    215,086,083,940.80/322,629,125,911.20 = 215,086,083,940.80/x
  3. Step 3: Cross multiply
    215,086,083,940.80x = 322,629,125,911.20 × 215,086,083,940.80
  4. Step 4: Simplify right side
    215,086,083,940.80x = 69,393,035,257,483,293,097,984
  5. Step 5: Solve for x
    x = 69,393,035,257,483,293,097,984/215,086,083,940.80
  6. Step 6: Final answer
    x = 322,629,125,911.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.