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Finding the Fourth Proportional to 321,376.58, 481,909.35 and 110,940.74

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Solution

The fourth proportional to 321,376.58, 481,909.35 and 110,940.74 is: 166,357.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,376.58 : 481,909.35 = 110,940.74 : x
  2. Step 2: Convert to fraction form
    321,376.58/481,909.35 = 110,940.74/x
  3. Step 3: Cross multiply
    321,376.58x = 481,909.35 × 110,940.74
  4. Step 4: Simplify right side
    321,376.58x = 53,463,379,901.92
  5. Step 5: Solve for x
    x = 53,463,379,901.92/321,376.58
  6. Step 6: Final answer
    x = 166,357.42

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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.