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Finding the Fourth Proportional to 111,753.92, 154,198.26 and 62,697.12

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Solution

The fourth proportional to 111,753.92, 154,198.26 and 62,697.12 is: 86,509.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,753.92 : 154,198.26 = 62,697.12 : x
  2. Step 2: Convert to fraction form
    111,753.92/154,198.26 = 62,697.12/x
  3. Step 3: Cross multiply
    111,753.92x = 154,198.26 × 62,697.12
  4. Step 4: Simplify right side
    111,753.92x = 9,667,786,811.01
  5. Step 5: Solve for x
    x = 9,667,786,811.01/111,753.92
  6. Step 6: Final answer
    x = 86,509.60

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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.