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Finding the Fourth Proportional to 412,554.60, 618,832.32 and 113,037.60

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Solution

The fourth proportional to 412,554.60, 618,832.32 and 113,037.60 is: 169,556.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,554.60 : 618,832.32 = 113,037.60 : x
  2. Step 2: Convert to fraction form
    412,554.60/618,832.32 = 113,037.60/x
  3. Step 3: Cross multiply
    412,554.60x = 618,832.32 × 113,037.60
  4. Step 4: Simplify right side
    412,554.60x = 69,951,320,255.23
  5. Step 5: Solve for x
    x = 69,951,320,255.23/412,554.60
  6. Step 6: Final answer
    x = 169,556.52

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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.