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Finding the Fourth Proportional to 551,311.19, 826,817.42 and 151,856.96

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Solution

The fourth proportional to 551,311.19, 826,817.42 and 151,856.96 is: 227,744.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,311.19 : 826,817.42 = 151,856.96 : x
  2. Step 2: Convert to fraction form
    551,311.19/826,817.42 = 151,856.96/x
  3. Step 3: Cross multiply
    551,311.19x = 826,817.42 × 151,856.96
  4. Step 4: Simplify right side
    551,311.19x = 125,557,974,982.87
  5. Step 5: Solve for x
    x = 125,557,974,982.87/551,311.19
  6. Step 6: Final answer
    x = 227,744.29

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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.