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Finding the Fourth Proportional to 225,395.70, 311,036.46 and 123,419.34

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Solution

The fourth proportional to 225,395.70, 311,036.46 and 123,419.34 is: 170,313.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,395.70 : 311,036.46 = 123,419.34 : x
  2. Step 2: Convert to fraction form
    225,395.70/311,036.46 = 123,419.34/x
  3. Step 3: Cross multiply
    225,395.70x = 311,036.46 × 123,419.34
  4. Step 4: Simplify right side
    225,395.70x = 38,387,914,609.14
  5. Step 5: Solve for x
    x = 38,387,914,609.14/225,395.70
  6. Step 6: Final answer
    x = 170,313.43

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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.