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Finding the Fourth Proportional to 79,573.73, 119,240.30 and 53,231.31

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Solution

The fourth proportional to 79,573.73, 119,240.30 and 53,231.31 is: 79,766.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,573.73 : 119,240.30 = 53,231.31 : x
  2. Step 2: Convert to fraction form
    79,573.73/119,240.30 = 53,231.31/x
  3. Step 3: Cross multiply
    79,573.73x = 119,240.30 × 53,231.31
  4. Step 4: Simplify right side
    79,573.73x = 6,347,317,506.87
  5. Step 5: Solve for x
    x = 6,347,317,506.87/79,573.73
  6. Step 6: Final answer
    x = 79,766.50

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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.