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Finding the Fourth Proportional to 65,339.56, 98,138.94 and 55,975.96

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Solution

The fourth proportional to 65,339.56, 98,138.94 and 55,975.96 is: 84,074.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,339.56 : 98,138.94 = 55,975.96 : x
  2. Step 2: Convert to fraction form
    65,339.56/98,138.94 = 55,975.96/x
  3. Step 3: Cross multiply
    65,339.56x = 98,138.94 × 55,975.96
  4. Step 4: Simplify right side
    65,339.56x = 5,493,421,379.88
  5. Step 5: Solve for x
    x = 5,493,421,379.88/65,339.56
  6. Step 6: Final answer
    x = 84,074.97

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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.