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Finding the Fourth Proportional to 325,128.58, 448,684.32 and 196,066.96

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Solution

The fourth proportional to 325,128.58, 448,684.32 and 196,066.96 is: 270,576.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,128.58 : 448,684.32 = 196,066.96 : x
  2. Step 2: Convert to fraction form
    325,128.58/448,684.32 = 196,066.96/x
  3. Step 3: Cross multiply
    325,128.58x = 448,684.32 × 196,066.96
  4. Step 4: Simplify right side
    325,128.58x = 87,972,170,622.07
  5. Step 5: Solve for x
    x = 87,972,170,622.07/325,128.58
  6. Step 6: Final answer
    x = 270,576.55

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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.