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Finding the Fourth Proportional to 321,340.91, 481,842.88 and 110,928.83

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Solution

The fourth proportional to 321,340.91, 481,842.88 and 110,928.83 is: 166,335.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,340.91 : 481,842.88 = 110,928.83 : x
  2. Step 2: Convert to fraction form
    321,340.91/481,842.88 = 110,928.83/x
  3. Step 3: Cross multiply
    321,340.91x = 481,842.88 × 110,928.83
  4. Step 4: Simplify right side
    321,340.91x = 53,450,264,235.69
  5. Step 5: Solve for x
    x = 53,450,264,235.69/321,340.91
  6. Step 6: Final answer
    x = 166,335.08

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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.