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Finding the Fourth Proportional to 561,858.57, 842,612.54 and 187,794.09

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Solution

The fourth proportional to 561,858.57, 842,612.54 and 187,794.09 is: 281,632.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,858.57 : 842,612.54 = 187,794.09 : x
  2. Step 2: Convert to fraction form
    561,858.57/842,612.54 = 187,794.09/x
  3. Step 3: Cross multiply
    561,858.57x = 842,612.54 × 187,794.09
  4. Step 4: Simplify right side
    561,858.57x = 158,237,654,232.92
  5. Step 5: Solve for x
    x = 158,237,654,232.92/561,858.57
  6. Step 6: Final answer
    x = 281,632.54

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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.