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Finding the Fourth Proportional to 269,043.88, 403,622.75 and 89,119.12

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Solution

The fourth proportional to 269,043.88, 403,622.75 and 89,119.12 is: 133,697.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,043.88 : 403,622.75 = 89,119.12 : x
  2. Step 2: Convert to fraction form
    269,043.88/403,622.75 = 89,119.12/x
  3. Step 3: Cross multiply
    269,043.88x = 403,622.75 × 89,119.12
  4. Step 4: Simplify right side
    269,043.88x = 35,970,505,464.00
  5. Step 5: Solve for x
    x = 35,970,505,464.00/269,043.88
  6. Step 6: Final answer
    x = 133,697.54

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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.