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Finding the Fourth Proportional to 316,584.72, 474,833.07 and 79,912.98

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Solution

The fourth proportional to 316,584.72, 474,833.07 and 79,912.98 is: 119,858.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,584.72 : 474,833.07 = 79,912.98 : x
  2. Step 2: Convert to fraction form
    316,584.72/474,833.07 = 79,912.98/x
  3. Step 3: Cross multiply
    316,584.72x = 474,833.07 × 79,912.98
  4. Step 4: Simplify right side
    316,584.72x = 37,945,325,626.25
  5. Step 5: Solve for x
    x = 37,945,325,626.25/316,584.72
  6. Step 6: Final answer
    x = 119,858.36

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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.