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Finding the Fourth Proportional to 111,857.75, 167,687.14 and 40,767.02

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Solution

The fourth proportional to 111,857.75, 167,687.14 and 40,767.02 is: 61,114.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,857.75 : 167,687.14 = 40,767.02 : x
  2. Step 2: Convert to fraction form
    111,857.75/167,687.14 = 40,767.02/x
  3. Step 3: Cross multiply
    111,857.75x = 167,687.14 × 40,767.02
  4. Step 4: Simplify right side
    111,857.75x = 6,836,104,990.12
  5. Step 5: Solve for x
    x = 6,836,104,990.12/111,857.75
  6. Step 6: Final answer
    x = 61,114.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.