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Finding the Fourth Proportional to 201,270.72, 277,755.75 and 109,390.01

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Solution

The fourth proportional to 201,270.72, 277,755.75 and 109,390.01 is: 150,959.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,270.72 : 277,755.75 = 109,390.01 : x
  2. Step 2: Convert to fraction form
    201,270.72/277,755.75 = 109,390.01/x
  3. Step 3: Cross multiply
    201,270.72x = 277,755.75 × 109,390.01
  4. Step 4: Simplify right side
    201,270.72x = 30,383,702,881.28
  5. Step 5: Solve for x
    x = 30,383,702,881.28/201,270.72
  6. Step 6: Final answer
    x = 150,959.38

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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.