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Finding the Fourth Proportional to 188,272.94, 259,751.70 and 120,329.67

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Solution

The fourth proportional to 188,272.94, 259,751.70 and 120,329.67 is: 166,013.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,272.94 : 259,751.70 = 120,329.67 : x
  2. Step 2: Convert to fraction form
    188,272.94/259,751.70 = 120,329.67/x
  3. Step 3: Cross multiply
    188,272.94x = 259,751.70 × 120,329.67
  4. Step 4: Simplify right side
    188,272.94x = 31,255,836,342.94
  5. Step 5: Solve for x
    x = 31,255,836,342.94/188,272.94
  6. Step 6: Final answer
    x = 166,013.43

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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.