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Finding the Fourth Proportional to 275,141.80, 412,712.70 and 275,141.80

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Solution

The fourth proportional to 275,141.80, 412,712.70 and 275,141.80 is: 412,712.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,141.80 : 412,712.70 = 275,141.80 : x
  2. Step 2: Convert to fraction form
    275,141.80/412,712.70 = 275,141.80/x
  3. Step 3: Cross multiply
    275,141.80x = 412,712.70 × 275,141.80
  4. Step 4: Simplify right side
    275,141.80x = 113,554,515,160.86
  5. Step 5: Solve for x
    x = 113,554,515,160.86/275,141.80
  6. Step 6: Final answer
    x = 412,712.70

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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.