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Finding the Fourth Proportional to 268,072.63, 401,990.86 and 125,958.33

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Solution

The fourth proportional to 268,072.63, 401,990.86 and 125,958.33 is: 188,882.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,072.63 : 401,990.86 = 125,958.33 : x
  2. Step 2: Convert to fraction form
    268,072.63/401,990.86 = 125,958.33/x
  3. Step 3: Cross multiply
    268,072.63x = 401,990.86 × 125,958.33
  4. Step 4: Simplify right side
    268,072.63x = 50,634,097,400.86
  5. Step 5: Solve for x
    x = 50,634,097,400.86/268,072.63
  6. Step 6: Final answer
    x = 188,882.01

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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.