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Finding the Fourth Proportional to 605,376.99, 908,076.42 and 156,107.25

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Solution

The fourth proportional to 605,376.99, 908,076.42 and 156,107.25 is: 234,163.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,376.99 : 908,076.42 = 156,107.25 : x
  2. Step 2: Convert to fraction form
    605,376.99/908,076.42 = 156,107.25/x
  3. Step 3: Cross multiply
    605,376.99x = 908,076.42 × 156,107.25
  4. Step 4: Simplify right side
    605,376.99x = 141,757,312,716.05
  5. Step 5: Solve for x
    x = 141,757,312,716.05/605,376.99
  6. Step 6: Final answer
    x = 234,163.69

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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.