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Finding the Fourth Proportional to 193,604.63, 267,212.65 and 123,709.25

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Solution

The fourth proportional to 193,604.63, 267,212.65 and 123,709.25 is: 170,743.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,604.63 : 267,212.65 = 123,709.25 : x
  2. Step 2: Convert to fraction form
    193,604.63/267,212.65 = 123,709.25/x
  3. Step 3: Cross multiply
    193,604.63x = 267,212.65 × 123,709.25
  4. Step 4: Simplify right side
    193,604.63x = 33,056,676,880.77
  5. Step 5: Solve for x
    x = 33,056,676,880.77/193,604.63
  6. Step 6: Final answer
    x = 170,743.21

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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.