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Finding the Fourth Proportional to 481,491.42, 722,219.85 and 181,959.90

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Solution

The fourth proportional to 481,491.42, 722,219.85 and 181,959.90 is: 272,933.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,491.42 : 722,219.85 = 181,959.90 : x
  2. Step 2: Convert to fraction form
    481,491.42/722,219.85 = 181,959.90/x
  3. Step 3: Cross multiply
    481,491.42x = 722,219.85 × 181,959.90
  4. Step 4: Simplify right side
    481,491.42x = 131,415,051,684.02
  5. Step 5: Solve for x
    x = 131,415,051,684.02/481,491.42
  6. Step 6: Final answer
    x = 272,933.32

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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.