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Finding the Fourth Proportional to 225,634.19, 311,378.82 and 123,669.41

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Solution

The fourth proportional to 225,634.19, 311,378.82 and 123,669.41 is: 170,665.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,634.19 : 311,378.82 = 123,669.41 : x
  2. Step 2: Convert to fraction form
    225,634.19/311,378.82 = 123,669.41/x
  3. Step 3: Cross multiply
    225,634.19x = 311,378.82 × 123,669.41
  4. Step 4: Simplify right side
    225,634.19x = 38,508,034,955.90
  5. Step 5: Solve for x
    x = 38,508,034,955.90/225,634.19
  6. Step 6: Final answer
    x = 170,665.78

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