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Finding the Fourth Proportional to 247,325,420.80, 345,802,092.80 and 247,325,420.80

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Solution

The fourth proportional to 247,325,420.80, 345,802,092.80 and 247,325,420.80 is: 345,802,092.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,325,420.80 : 345,802,092.80 = 247,325,420.80 : x
  2. Step 2: Convert to fraction form
    247,325,420.80/345,802,092.80 = 247,325,420.80/x
  3. Step 3: Cross multiply
    247,325,420.80x = 345,802,092.80 × 247,325,420.80
  4. Step 4: Simplify right side
    247,325,420.80x = 85,525,648,115,280,656
  5. Step 5: Solve for x
    x = 85,525,648,115,280,656/247,325,420.80
  6. Step 6: Final answer
    x = 345,802,092.80

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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.