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Finding the Fourth Proportional to 403,423.88, 605,246.31 and 119,114.33

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Solution

The fourth proportional to 403,423.88, 605,246.31 and 119,114.33 is: 178,704.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,423.88 : 605,246.31 = 119,114.33 : x
  2. Step 2: Convert to fraction form
    403,423.88/605,246.31 = 119,114.33/x
  3. Step 3: Cross multiply
    403,423.88x = 605,246.31 × 119,114.33
  4. Step 4: Simplify right side
    403,423.88x = 72,093,505,674.39
  5. Step 5: Solve for x
    x = 72,093,505,674.39/403,423.88
  6. Step 6: Final answer
    x = 178,704.11

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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.