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Finding the Fourth Proportional to 130,576.60, 195,879 and 55,704.67

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Solution

The fourth proportional to 130,576.60, 195,879 and 55,704.67 is: 83,563.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,576.60 : 195,879 = 55,704.67 : x
  2. Step 2: Convert to fraction form
    130,576.60/195,879 = 55,704.67/x
  3. Step 3: Cross multiply
    130,576.60x = 195,879 × 55,704.67
  4. Step 4: Simplify right side
    130,576.60x = 10,911,375,054.93
  5. Step 5: Solve for x
    x = 10,911,375,054.93/130,576.60
  6. Step 6: Final answer
    x = 83,563.02

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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.