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Finding the Fourth Proportional to 545,912.40, 818,722.80 and 166,832.40

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Solution

The fourth proportional to 545,912.40, 818,722.80 and 166,832.40 is: 250,204.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,912.40 : 818,722.80 = 166,832.40 : x
  2. Step 2: Convert to fraction form
    545,912.40/818,722.80 = 166,832.40/x
  3. Step 3: Cross multiply
    545,912.40x = 818,722.80 × 166,832.40
  4. Step 4: Simplify right side
    545,912.40x = 136,589,489,658.72
  5. Step 5: Solve for x
    x = 136,589,489,658.72/545,912.40
  6. Step 6: Final answer
    x = 250,204.04

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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.