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Finding the Fourth Proportional to 551,238.20, 826,808.70 and 151,843.40

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Solution

The fourth proportional to 551,238.20, 826,808.70 and 151,843.40 is: 227,751.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,238.20 : 826,808.70 = 151,843.40 : x
  2. Step 2: Convert to fraction form
    551,238.20/826,808.70 = 151,843.40/x
  3. Step 3: Cross multiply
    551,238.20x = 826,808.70 × 151,843.40
  4. Step 4: Simplify right side
    551,238.20x = 125,545,444,157.58
  5. Step 5: Solve for x
    x = 125,545,444,157.58/551,238.20
  6. Step 6: Final answer
    x = 227,751.71

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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.