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Finding the Fourth Proportional to 201,720.69, 302,571.32 and 49,917.15

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Solution

The fourth proportional to 201,720.69, 302,571.32 and 49,917.15 is: 74,873.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,720.69 : 302,571.32 = 49,917.15 : x
  2. Step 2: Convert to fraction form
    201,720.69/302,571.32 = 49,917.15/x
  3. Step 3: Cross multiply
    201,720.69x = 302,571.32 × 49,917.15
  4. Step 4: Simplify right side
    201,720.69x = 15,103,497,716.55
  5. Step 5: Solve for x
    x = 15,103,497,716.55/201,720.69
  6. Step 6: Final answer
    x = 74,873.32

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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.