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Finding the Fourth Proportional to 551,910.94, 827,866.43 and 172,861.35

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Solution

The fourth proportional to 551,910.94, 827,866.43 and 172,861.35 is: 259,292.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,910.94 : 827,866.43 = 172,861.35 : x
  2. Step 2: Convert to fraction form
    551,910.94/827,866.43 = 172,861.35/x
  3. Step 3: Cross multiply
    551,910.94x = 827,866.43 × 172,861.35
  4. Step 4: Simplify right side
    551,910.94x = 143,106,108,709.48
  5. Step 5: Solve for x
    x = 143,106,108,709.48/551,910.94
  6. Step 6: Final answer
    x = 259,292.03

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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.