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Finding the Fourth Proportional to 201,190.36, 277,667.22 and 115,181.32

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Solution

The fourth proportional to 201,190.36, 277,667.22 and 115,181.32 is: 158,964.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,190.36 : 277,667.22 = 115,181.32 : x
  2. Step 2: Convert to fraction form
    201,190.36/277,667.22 = 115,181.32/x
  3. Step 3: Cross multiply
    201,190.36x = 277,667.22 × 115,181.32
  4. Step 4: Simplify right side
    201,190.36x = 31,982,076,920.33
  5. Step 5: Solve for x
    x = 31,982,076,920.33/201,190.36
  6. Step 6: Final answer
    x = 158,964.26

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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.