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Finding the Fourth Proportional to 341,215.81, 470,879.43 and 188,255.81

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Solution

The fourth proportional to 341,215.81, 470,879.43 and 188,255.81 is: 259,793.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,215.81 : 470,879.43 = 188,255.81 : x
  2. Step 2: Convert to fraction form
    341,215.81/470,879.43 = 188,255.81/x
  3. Step 3: Cross multiply
    341,215.81x = 470,879.43 × 188,255.81
  4. Step 4: Simplify right side
    341,215.81x = 88,645,788,978.23
  5. Step 5: Solve for x
    x = 88,645,788,978.23/341,215.81
  6. Step 6: Final answer
    x = 259,793.91

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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.