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Finding the Fourth Proportional to 412,563.60, 618,845.82 and 113,046.60

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Solution

The fourth proportional to 412,563.60, 618,845.82 and 113,046.60 is: 169,570.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,563.60 : 618,845.82 = 113,046.60 : x
  2. Step 2: Convert to fraction form
    412,563.60/618,845.82 = 113,046.60/x
  3. Step 3: Cross multiply
    412,563.60x = 618,845.82 × 113,046.60
  4. Step 4: Simplify right side
    412,563.60x = 69,958,415,875.21
  5. Step 5: Solve for x
    x = 69,958,415,875.21/412,563.60
  6. Step 6: Final answer
    x = 169,570.02

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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.