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Finding the Fourth Proportional to 68,949.76, 103,424.64 and 22,203.52

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Solution

The fourth proportional to 68,949.76, 103,424.64 and 22,203.52 is: 33,305.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,949.76 : 103,424.64 = 22,203.52 : x
  2. Step 2: Convert to fraction form
    68,949.76/103,424.64 = 22,203.52/x
  3. Step 3: Cross multiply
    68,949.76x = 103,424.64 × 22,203.52
  4. Step 4: Simplify right side
    68,949.76x = 2,296,391,062.73
  5. Step 5: Solve for x
    x = 2,296,391,062.73/68,949.76
  6. Step 6: Final answer
    x = 33,305.28

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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.