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Finding the Fourth Proportional to 248,890,205.70, 347,640,072.30 and 248,890,205.70

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Solution

The fourth proportional to 248,890,205.70, 347,640,072.30 and 248,890,205.70 is: 347,640,072.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,890,205.70 : 347,640,072.30 = 248,890,205.70 : x
  2. Step 2: Convert to fraction form
    248,890,205.70/347,640,072.30 = 248,890,205.70/x
  3. Step 3: Cross multiply
    248,890,205.70x = 347,640,072.30 × 248,890,205.70
  4. Step 4: Simplify right side
    248,890,205.70x = 86,524,209,104,309,872
  5. Step 5: Solve for x
    x = 86,524,209,104,309,872/248,890,205.70
  6. Step 6: Final answer
    x = 347,640,072.30

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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.