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Finding the Fourth Proportional to 145,991.56, 218,986.86 and 35,183.56

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Solution

The fourth proportional to 145,991.56, 218,986.86 and 35,183.56 is: 52,775.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,991.56 : 218,986.86 = 35,183.56 : x
  2. Step 2: Convert to fraction form
    145,991.56/218,986.86 = 35,183.56/x
  3. Step 3: Cross multiply
    145,991.56x = 218,986.86 × 35,183.56
  4. Step 4: Simplify right side
    145,991.56x = 7,704,737,328.02
  5. Step 5: Solve for x
    x = 7,704,737,328.02/145,991.56
  6. Step 6: Final answer
    x = 52,775.22

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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.