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Finding the Fourth Proportional to 519,181.20, 778,852.80 and 164,161.44

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Solution

The fourth proportional to 519,181.20, 778,852.80 and 164,161.44 is: 246,267.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,181.20 : 778,852.80 = 164,161.44 : x
  2. Step 2: Convert to fraction form
    519,181.20/778,852.80 = 164,161.44/x
  3. Step 3: Cross multiply
    519,181.20x = 778,852.80 × 164,161.44
  4. Step 4: Simplify right side
    519,181.20x = 127,857,597,196.03
  5. Step 5: Solve for x
    x = 127,857,597,196.03/519,181.20
  6. Step 6: Final answer
    x = 246,267.77

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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.