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Finding the Fourth Proportional to 223,183.82, 308,047.32 and 127,745.90

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Solution

The fourth proportional to 223,183.82, 308,047.32 and 127,745.90 is: 176,320.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,183.82 : 308,047.32 = 127,745.90 : x
  2. Step 2: Convert to fraction form
    223,183.82/308,047.32 = 127,745.90/x
  3. Step 3: Cross multiply
    223,183.82x = 308,047.32 × 127,745.90
  4. Step 4: Simplify right side
    223,183.82x = 39,351,782,135.99
  5. Step 5: Solve for x
    x = 39,351,782,135.99/223,183.82
  6. Step 6: Final answer
    x = 176,320.05

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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.