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Finding the Fourth Proportional to 201,794.67, 278,476.97 and 111,150.89

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Solution

The fourth proportional to 201,794.67, 278,476.97 and 111,150.89 is: 153,388.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,794.67 : 278,476.97 = 111,150.89 : x
  2. Step 2: Convert to fraction form
    201,794.67/278,476.97 = 111,150.89/x
  3. Step 3: Cross multiply
    201,794.67x = 278,476.97 × 111,150.89
  4. Step 4: Simplify right side
    201,794.67x = 30,952,963,060.00
  5. Step 5: Solve for x
    x = 30,952,963,060.00/201,794.67
  6. Step 6: Final answer
    x = 153,388.41

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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.