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Finding the Fourth Proportional to 275,553.68, 412,945.56 and 148,920.92

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Solution

The fourth proportional to 275,553.68, 412,945.56 and 148,920.92 is: 223,173.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,553.68 : 412,945.56 = 148,920.92 : x
  2. Step 2: Convert to fraction form
    275,553.68/412,945.56 = 148,920.92/x
  3. Step 3: Cross multiply
    275,553.68x = 412,945.56 × 148,920.92
  4. Step 4: Simplify right side
    275,553.68x = 61,496,230,640.39
  5. Step 5: Solve for x
    x = 61,496,230,640.39/275,553.68
  6. Step 6: Final answer
    x = 223,173.33

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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.