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Finding the Fourth Proportional to 221,959,200.60, 311,253,064.20 and 221,959,200.60

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Solution

The fourth proportional to 221,959,200.60, 311,253,064.20 and 221,959,200.60 is: 311,253,064.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,959,200.60 : 311,253,064.20 = 221,959,200.60 : x
  2. Step 2: Convert to fraction form
    221,959,200.60/311,253,064.20 = 221,959,200.60/x
  3. Step 3: Cross multiply
    221,959,200.60x = 311,253,064.20 × 221,959,200.60
  4. Step 4: Simplify right side
    221,959,200.60x = 69,085,481,314,132,472
  5. Step 5: Solve for x
    x = 69,085,481,314,132,472/221,959,200.60
  6. Step 6: Final answer
    x = 311,253,064.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.