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Finding the Fourth Proportional to 188,112.88, 282,003.22 and 143,936.83

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Solution

The fourth proportional to 188,112.88, 282,003.22 and 143,936.83 is: 215,778.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,112.88 : 282,003.22 = 143,936.83 : x
  2. Step 2: Convert to fraction form
    188,112.88/282,003.22 = 143,936.83/x
  3. Step 3: Cross multiply
    188,112.88x = 282,003.22 × 143,936.83
  4. Step 4: Simplify right side
    188,112.88x = 40,590,649,536.59
  5. Step 5: Solve for x
    x = 40,590,649,536.59/188,112.88
  6. Step 6: Final answer
    x = 215,778.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.