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Finding the Fourth Proportional to 188,964.61, 260,771.13 and 104,081.67

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Solution

The fourth proportional to 188,964.61, 260,771.13 and 104,081.67 is: 143,632.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,964.61 : 260,771.13 = 104,081.67 : x
  2. Step 2: Convert to fraction form
    188,964.61/260,771.13 = 104,081.67/x
  3. Step 3: Cross multiply
    188,964.61x = 260,771.13 × 104,081.67
  4. Step 4: Simplify right side
    188,964.61x = 27,141,494,698.19
  5. Step 5: Solve for x
    x = 27,141,494,698.19/188,964.61
  6. Step 6: Final answer
    x = 143,632.69

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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.