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Finding the Fourth Proportional to 225,850.68, 311,671.82 and 123,874.07

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Solution

The fourth proportional to 225,850.68, 311,671.82 and 123,874.07 is: 170,945.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,850.68 : 311,671.82 = 123,874.07 : x
  2. Step 2: Convert to fraction form
    225,850.68/311,671.82 = 123,874.07/x
  3. Step 3: Cross multiply
    225,850.68x = 311,671.82 × 123,874.07
  4. Step 4: Simplify right side
    225,850.68x = 38,608,054,669.98
  5. Step 5: Solve for x
    x = 38,608,054,669.98/225,850.68
  6. Step 6: Final answer
    x = 170,945.05

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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.