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Finding the Fourth Proportional to 545,986.80, 818,982.15 and 166,906.02

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Solution

The fourth proportional to 545,986.80, 818,982.15 and 166,906.02 is: 250,359.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,986.80 : 818,982.15 = 166,906.02 : x
  2. Step 2: Convert to fraction form
    545,986.80/818,982.15 = 166,906.02/x
  3. Step 3: Cross multiply
    545,986.80x = 818,982.15 × 166,906.02
  4. Step 4: Simplify right side
    545,986.80x = 136,693,051,107.54
  5. Step 5: Solve for x
    x = 136,693,051,107.54/545,986.80
  6. Step 6: Final answer
    x = 250,359.63

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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.