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Finding the Fourth Proportional to 336,796.25, 505,409.48 and 159,313.73

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Solution

The fourth proportional to 336,796.25, 505,409.48 and 159,313.73 is: 239,072.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,796.25 : 505,409.48 = 159,313.73 : x
  2. Step 2: Convert to fraction form
    336,796.25/505,409.48 = 159,313.73/x
  3. Step 3: Cross multiply
    336,796.25x = 505,409.48 × 159,313.73
  4. Step 4: Simplify right side
    336,796.25x = 80,518,669,436.16
  5. Step 5: Solve for x
    x = 80,518,669,436.16/336,796.25
  6. Step 6: Final answer
    x = 239,072.35

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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.