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Finding the Fourth Proportional to 241,081.79, 332,690.21 and 139,106.03

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Solution

The fourth proportional to 241,081.79, 332,690.21 and 139,106.03 is: 191,964.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,081.79 : 332,690.21 = 139,106.03 : x
  2. Step 2: Convert to fraction form
    241,081.79/332,690.21 = 139,106.03/x
  3. Step 3: Cross multiply
    241,081.79x = 332,690.21 × 139,106.03
  4. Step 4: Simplify right side
    241,081.79x = 46,279,214,469.16
  5. Step 5: Solve for x
    x = 46,279,214,469.16/241,081.79
  6. Step 6: Final answer
    x = 191,964.79

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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.