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Finding the Fourth Proportional to 481,242.94, 721,901.67 and 161,396.62

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Solution

The fourth proportional to 481,242.94, 721,901.67 and 161,396.62 is: 242,107.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,242.94 : 721,901.67 = 161,396.62 : x
  2. Step 2: Convert to fraction form
    481,242.94/721,901.67 = 161,396.62/x
  3. Step 3: Cross multiply
    481,242.94x = 721,901.67 × 161,396.62
  4. Step 4: Simplify right side
    481,242.94x = 116,512,489,510.36
  5. Step 5: Solve for x
    x = 116,512,489,510.36/481,242.94
  6. Step 6: Final answer
    x = 242,107.43

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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.