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Finding the Fourth Proportional to 111,944.02, 154,481.97 and 61,643.02

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Solution

The fourth proportional to 111,944.02, 154,481.97 and 61,643.02 is: 85,066.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,944.02 : 154,481.97 = 61,643.02 : x
  2. Step 2: Convert to fraction form
    111,944.02/154,481.97 = 61,643.02/x
  3. Step 3: Cross multiply
    111,944.02x = 154,481.97 × 61,643.02
  4. Step 4: Simplify right side
    111,944.02x = 9,522,735,166.35
  5. Step 5: Solve for x
    x = 9,522,735,166.35/111,944.02
  6. Step 6: Final answer
    x = 85,066.94

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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.