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Finding the Fourth Proportional to 201,361.71, 277,879.37 and 110,719.20

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Solution

The fourth proportional to 201,361.71, 277,879.37 and 110,719.20 is: 152,792.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,361.71 : 277,879.37 = 110,719.20 : x
  2. Step 2: Convert to fraction form
    201,361.71/277,879.37 = 110,719.20/x
  3. Step 3: Cross multiply
    201,361.71x = 277,879.37 × 110,719.20
  4. Step 4: Simplify right side
    201,361.71x = 30,766,581,542.90
  5. Step 5: Solve for x
    x = 30,766,581,542.90/201,361.71
  6. Step 6: Final answer
    x = 152,792.61

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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.