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Finding the Fourth Proportional to 111,936.70, 167,904.03 and 45,361

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Solution

The fourth proportional to 111,936.70, 167,904.03 and 45,361 is: 68,041.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,936.70 : 167,904.03 = 45,361 : x
  2. Step 2: Convert to fraction form
    111,936.70/167,904.03 = 45,361/x
  3. Step 3: Cross multiply
    111,936.70x = 167,904.03 × 45,361
  4. Step 4: Simplify right side
    111,936.70x = 7,616,294,704.83
  5. Step 5: Solve for x
    x = 7,616,294,704.83/111,936.70
  6. Step 6: Final answer
    x = 68,041.09

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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.