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Finding the Fourth Proportional to 519,104.90, 778,511.55 and 164,227.70

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Solution

The fourth proportional to 519,104.90, 778,511.55 and 164,227.70 is: 246,295.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,104.90 : 778,511.55 = 164,227.70 : x
  2. Step 2: Convert to fraction form
    519,104.90/778,511.55 = 164,227.70/x
  3. Step 3: Cross multiply
    519,104.90x = 778,511.55 × 164,227.70
  4. Step 4: Simplify right side
    519,104.90x = 127,853,161,279.94
  5. Step 5: Solve for x
    x = 127,853,161,279.94/519,104.90
  6. Step 6: Final answer
    x = 246,295.42

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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.