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Finding the Fourth Proportional to 111,751.67, 154,195.16 and 62,694.87

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Solution

The fourth proportional to 111,751.67, 154,195.16 and 62,694.87 is: 86,506.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,751.67 : 154,195.16 = 62,694.87 : x
  2. Step 2: Convert to fraction form
    111,751.67/154,195.16 = 62,694.87/x
  3. Step 3: Cross multiply
    111,751.67x = 154,195.16 × 62,694.87
  4. Step 4: Simplify right side
    111,751.67x = 9,667,245,197.35
  5. Step 5: Solve for x
    x = 9,667,245,197.35/111,751.67
  6. Step 6: Final answer
    x = 86,506.50

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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.