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Finding the Fourth Proportional to 202,093.80, 303,140.70 and 123,361.80

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Solution

The fourth proportional to 202,093.80, 303,140.70 and 123,361.80 is: 185,042.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,093.80 : 303,140.70 = 123,361.80 : x
  2. Step 2: Convert to fraction form
    202,093.80/303,140.70 = 123,361.80/x
  3. Step 3: Cross multiply
    202,093.80x = 303,140.70 × 123,361.80
  4. Step 4: Simplify right side
    202,093.80x = 37,395,982,405.26
  5. Step 5: Solve for x
    x = 37,395,982,405.26/202,093.80
  6. Step 6: Final answer
    x = 185,042.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.