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Finding the Fourth Proportional to 225,940.42, 311,787.25 and 123,963.58

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Solution

The fourth proportional to 225,940.42, 311,787.25 and 123,963.58 is: 171,063.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,940.42 : 311,787.25 = 123,963.58 : x
  2. Step 2: Convert to fraction form
    225,940.42/311,787.25 = 123,963.58/x
  3. Step 3: Cross multiply
    225,940.42x = 311,787.25 × 123,963.58
  4. Step 4: Simplify right side
    225,940.42x = 38,650,263,708.36
  5. Step 5: Solve for x
    x = 38,650,263,708.36/225,940.42
  6. Step 6: Final answer
    x = 171,063.96

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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.