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Finding the Fourth Proportional to 275,191.96, 412,788.42 and 75,515.08

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Solution

The fourth proportional to 275,191.96, 412,788.42 and 75,515.08 is: 113,272.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,191.96 : 412,788.42 = 75,515.08 : x
  2. Step 2: Convert to fraction form
    275,191.96/412,788.42 = 75,515.08/x
  3. Step 3: Cross multiply
    275,191.96x = 412,788.42 × 75,515.08
  4. Step 4: Simplify right side
    275,191.96x = 31,171,750,559.37
  5. Step 5: Solve for x
    x = 31,171,750,559.37/275,191.96
  6. Step 6: Final answer
    x = 113,272.75

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1.5x scale

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.