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Finding the Fourth Proportional to 227,114.76, 313,348.99 and 131,603

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Solution

The fourth proportional to 227,114.76, 313,348.99 and 131,603 is: 181,571.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,114.76 : 313,348.99 = 131,603 : x
  2. Step 2: Convert to fraction form
    227,114.76/313,348.99 = 131,603/x
  3. Step 3: Cross multiply
    227,114.76x = 313,348.99 × 131,603
  4. Step 4: Simplify right side
    227,114.76x = 41,237,667,130.97
  5. Step 5: Solve for x
    x = 41,237,667,130.97/227,114.76
  6. Step 6: Final answer
    x = 181,571.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.