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Finding the Fourth Proportional to 326,907.64, 451,129.46 and 181,709.62

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Solution

The fourth proportional to 326,907.64, 451,129.46 and 181,709.62 is: 250,757.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,907.64 : 451,129.46 = 181,709.62 : x
  2. Step 2: Convert to fraction form
    326,907.64/451,129.46 = 181,709.62/x
  3. Step 3: Cross multiply
    326,907.64x = 451,129.46 × 181,709.62
  4. Step 4: Simplify right side
    326,907.64x = 81,974,562,747.41
  5. Step 5: Solve for x
    x = 81,974,562,747.41/326,907.64
  6. Step 6: Final answer
    x = 250,757.56

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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.