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Finding the Fourth Proportional to 264,119.10, 395,571.15 and 216,879.90

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Solution

The fourth proportional to 264,119.10, 395,571.15 and 216,879.90 is: 324,821.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,119.10 : 395,571.15 = 216,879.90 : x
  2. Step 2: Convert to fraction form
    264,119.10/395,571.15 = 216,879.90/x
  3. Step 3: Cross multiply
    264,119.10x = 395,571.15 × 216,879.90
  4. Step 4: Simplify right side
    264,119.10x = 85,791,431,454.89
  5. Step 5: Solve for x
    x = 85,791,431,454.89/264,119.10
  6. Step 6: Final answer
    x = 324,821.00

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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.