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Finding the Fourth Proportional to 140,608.56, 210,943.83 and 40,772.93

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Solution

The fourth proportional to 140,608.56, 210,943.83 and 40,772.93 is: 61,168.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,608.56 : 210,943.83 = 40,772.93 : x
  2. Step 2: Convert to fraction form
    140,608.56/210,943.83 = 40,772.93/x
  3. Step 3: Cross multiply
    140,608.56x = 210,943.83 × 40,772.93
  4. Step 4: Simplify right side
    140,608.56x = 8,600,797,157.56
  5. Step 5: Solve for x
    x = 8,600,797,157.56/140,608.56
  6. Step 6: Final answer
    x = 61,168.37

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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.