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Finding the Fourth Proportional to 111,883.68, 154,399.46 and 61,582.68

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Solution

The fourth proportional to 111,883.68, 154,399.46 and 61,582.68 is: 84,984.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,883.68 : 154,399.46 = 61,582.68 : x
  2. Step 2: Convert to fraction form
    111,883.68/154,399.46 = 61,582.68/x
  3. Step 3: Cross multiply
    111,883.68x = 154,399.46 × 61,582.68
  4. Step 4: Simplify right side
    111,883.68x = 9,508,332,229.44
  5. Step 5: Solve for x
    x = 9,508,332,229.44/111,883.68
  6. Step 6: Final answer
    x = 84,984.09

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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.