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Finding the Fourth Proportional to 167,491, 231,137.70 and 92,040.04

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Solution

The fourth proportional to 167,491, 231,137.70 and 92,040.04 is: 127,015.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,491 : 231,137.70 = 92,040.04 : x
  2. Step 2: Convert to fraction form
    167,491/231,137.70 = 92,040.04/x
  3. Step 3: Cross multiply
    167,491x = 231,137.70 × 92,040.04
  4. Step 4: Simplify right side
    167,491x = 21,273,923,153.51
  5. Step 5: Solve for x
    x = 21,273,923,153.51/167,491
  6. Step 6: Final answer
    x = 127,015.32

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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.