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Finding the Fourth Proportional to 373,090.40, 559,765.20 and 162,879.20

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Solution

The fourth proportional to 373,090.40, 559,765.20 and 162,879.20 is: 244,375.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,090.40 : 559,765.20 = 162,879.20 : x
  2. Step 2: Convert to fraction form
    373,090.40/559,765.20 = 162,879.20/x
  3. Step 3: Cross multiply
    373,090.40x = 559,765.20 × 162,879.20
  4. Step 4: Simplify right side
    373,090.40x = 91,174,107,963.84
  5. Step 5: Solve for x
    x = 91,174,107,963.84/373,090.40
  6. Step 6: Final answer
    x = 244,375.38

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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.