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Finding the Fourth Proportional to 439,313.10, 659,002.05 and 158,793.90

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Solution

The fourth proportional to 439,313.10, 659,002.05 and 158,793.90 is: 238,202.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,313.10 : 659,002.05 = 158,793.90 : x
  2. Step 2: Convert to fraction form
    439,313.10/659,002.05 = 158,793.90/x
  3. Step 3: Cross multiply
    439,313.10x = 659,002.05 × 158,793.90
  4. Step 4: Simplify right side
    439,313.10x = 104,645,505,627.50
  5. Step 5: Solve for x
    x = 104,645,505,627.50/439,313.10
  6. Step 6: Final answer
    x = 238,202.56

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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.