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Finding the Fourth Proportional to 410,653.62, 616,079.39 and 130,170.87

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Solution

The fourth proportional to 410,653.62, 616,079.39 and 130,170.87 is: 195,287.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,653.62 : 616,079.39 = 130,170.87 : x
  2. Step 2: Convert to fraction form
    410,653.62/616,079.39 = 130,170.87/x
  3. Step 3: Cross multiply
    410,653.62x = 616,079.39 × 130,170.87
  4. Step 4: Simplify right side
    410,653.62x = 80,195,589,534.52
  5. Step 5: Solve for x
    x = 80,195,589,534.52/410,653.62
  6. Step 6: Final answer
    x = 195,287.67

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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.