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Finding the Fourth Proportional to 265,270.81, 397,771.03 and 130,343.85

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Solution

The fourth proportional to 265,270.81, 397,771.03 and 130,343.85 is: 195,449.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,270.81 : 397,771.03 = 130,343.85 : x
  2. Step 2: Convert to fraction form
    265,270.81/397,771.03 = 130,343.85/x
  3. Step 3: Cross multiply
    265,270.81x = 397,771.03 × 130,343.85
  4. Step 4: Simplify right side
    265,270.81x = 51,847,004,828.09
  5. Step 5: Solve for x
    x = 51,847,004,828.09/265,270.81
  6. Step 6: Final answer
    x = 195,449.34

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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.