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Finding the Fourth Proportional to 29,107,280.80, 40,809,912.80 and 29,107,280.80

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Solution

The fourth proportional to 29,107,280.80, 40,809,912.80 and 29,107,280.80 is: 40,809,912.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,107,280.80 : 40,809,912.80 = 29,107,280.80 : x
  2. Step 2: Convert to fraction form
    29,107,280.80/40,809,912.80 = 29,107,280.80/x
  3. Step 3: Cross multiply
    29,107,280.80x = 40,809,912.80 × 29,107,280.80
  4. Step 4: Simplify right side
    29,107,280.80x = 1,187,865,591,293,114.25
  5. Step 5: Solve for x
    x = 1,187,865,591,293,114.25/29,107,280.80
  6. Step 6: Final answer
    x = 40,809,912.80

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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.