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Finding the Fourth Proportional to 75,975, 104,845.54 and 42,441

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Solution

The fourth proportional to 75,975, 104,845.54 and 42,441 is: 58,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,975 : 104,845.54 = 42,441 : x
  2. Step 2: Convert to fraction form
    75,975/104,845.54 = 42,441/x
  3. Step 3: Cross multiply
    75,975x = 104,845.54 × 42,441
  4. Step 4: Simplify right side
    75,975x = 4,449,749,563.14
  5. Step 5: Solve for x
    x = 4,449,749,563.14/75,975
  6. Step 6: Final answer
    x = 58,568.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.