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Finding the Fourth Proportional to 398,168.33, 597,245.20 and 98,649.56

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Solution

The fourth proportional to 398,168.33, 597,245.20 and 98,649.56 is: 147,972.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,168.33 : 597,245.20 = 98,649.56 : x
  2. Step 2: Convert to fraction form
    398,168.33/597,245.20 = 98,649.56/x
  3. Step 3: Cross multiply
    398,168.33x = 597,245.20 × 98,649.56
  4. Step 4: Simplify right side
    398,168.33x = 58,917,977,438.60
  5. Step 5: Solve for x
    x = 58,917,977,438.60/398,168.33
  6. Step 6: Final answer
    x = 147,972.54

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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.