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Finding the Fourth Proportional to 239,267.90, 330,204.44 and 131,837.90

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Solution

The fourth proportional to 239,267.90, 330,204.44 and 131,837.90 is: 181,944.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,267.90 : 330,204.44 = 131,837.90 : x
  2. Step 2: Convert to fraction form
    239,267.90/330,204.44 = 131,837.90/x
  3. Step 3: Cross multiply
    239,267.90x = 330,204.44 × 131,837.90
  4. Step 4: Simplify right side
    239,267.90x = 43,533,459,940.28
  5. Step 5: Solve for x
    x = 43,533,459,940.28/239,267.90
  6. Step 6: Final answer
    x = 181,944.42

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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.