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Finding the Fourth Proportional to 366,913.81, 550,311.67 and 100,612.54

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Solution

The fourth proportional to 366,913.81, 550,311.67 and 100,612.54 is: 150,902.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,913.81 : 550,311.67 = 100,612.54 : x
  2. Step 2: Convert to fraction form
    366,913.81/550,311.67 = 100,612.54/x
  3. Step 3: Cross multiply
    366,913.81x = 550,311.67 × 100,612.54
  4. Step 4: Simplify right side
    366,913.81x = 55,368,254,910.34
  5. Step 5: Solve for x
    x = 55,368,254,910.34/366,913.81
  6. Step 6: Final answer
    x = 150,902.62

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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.