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Finding the Fourth Proportional to 111,629.44, 154,044.48 and 61,325.44

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Solution

The fourth proportional to 111,629.44, 154,044.48 and 61,325.44 is: 84,626.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,629.44 : 154,044.48 = 61,325.44 : x
  2. Step 2: Convert to fraction form
    111,629.44/154,044.48 = 61,325.44/x
  3. Step 3: Cross multiply
    111,629.44x = 154,044.48 × 61,325.44
  4. Step 4: Simplify right side
    111,629.44x = 9,446,845,515.57
  5. Step 5: Solve for x
    x = 9,446,845,515.57/111,629.44
  6. Step 6: Final answer
    x = 84,626.83

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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.