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Finding the Fourth Proportional to 519,218.76, 778,871.88 and 164,224.92

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Solution

The fourth proportional to 519,218.76, 778,871.88 and 164,224.92 is: 246,351.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,218.76 : 778,871.88 = 164,224.92 : x
  2. Step 2: Convert to fraction form
    519,218.76/778,871.88 = 164,224.92/x
  3. Step 3: Cross multiply
    519,218.76x = 778,871.88 × 164,224.92
  4. Step 4: Simplify right side
    519,218.76x = 127,910,172,183.25
  5. Step 5: Solve for x
    x = 127,910,172,183.25/519,218.76
  6. Step 6: Final answer
    x = 246,351.21

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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.