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Finding the Fourth Proportional to 481,012.83, 720,961.56 and 181,301.49

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Solution

The fourth proportional to 481,012.83, 720,961.56 and 181,301.49 is: 271,742.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,012.83 : 720,961.56 = 181,301.49 : x
  2. Step 2: Convert to fraction form
    481,012.83/720,961.56 = 181,301.49/x
  3. Step 3: Cross multiply
    481,012.83x = 720,961.56 × 181,301.49
  4. Step 4: Simplify right side
    481,012.83x = 130,711,405,060.72
  5. Step 5: Solve for x
    x = 130,711,405,060.72/481,012.83
  6. Step 6: Final answer
    x = 271,742.03

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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.