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Finding the Fourth Proportional to 447,195.67, 670,798.37 and 131,658.55

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Solution

The fourth proportional to 447,195.67, 670,798.37 and 131,658.55 is: 197,489.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,195.67 : 670,798.37 = 131,658.55 : x
  2. Step 2: Convert to fraction form
    447,195.67/670,798.37 = 131,658.55/x
  3. Step 3: Cross multiply
    447,195.67x = 670,798.37 × 131,658.55
  4. Step 4: Simplify right side
    447,195.67x = 88,316,340,736.56
  5. Step 5: Solve for x
    x = 88,316,340,736.56/447,195.67
  6. Step 6: Final answer
    x = 197,489.26

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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.