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Finding the Fourth Proportional to 205,764.92, 308,676.95 and 63,621.28

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Solution

The fourth proportional to 205,764.92, 308,676.95 and 63,621.28 is: 95,441.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,764.92 : 308,676.95 = 63,621.28 : x
  2. Step 2: Convert to fraction form
    205,764.92/308,676.95 = 63,621.28/x
  3. Step 3: Cross multiply
    205,764.92x = 308,676.95 × 63,621.28
  4. Step 4: Simplify right side
    205,764.92x = 19,638,422,665.50
  5. Step 5: Solve for x
    x = 19,638,422,665.50/205,764.92
  6. Step 6: Final answer
    x = 95,441.06

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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.