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Finding the Fourth Proportional to 77,297.49, 106,663.37 and 43,763.49

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Solution

The fourth proportional to 77,297.49, 106,663.37 and 43,763.49 is: 60,389.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,297.49 : 106,663.37 = 43,763.49 : x
  2. Step 2: Convert to fraction form
    77,297.49/106,663.37 = 43,763.49/x
  3. Step 3: Cross multiply
    77,297.49x = 106,663.37 × 43,763.49
  4. Step 4: Simplify right side
    77,297.49x = 4,667,961,107.54
  5. Step 5: Solve for x
    x = 4,667,961,107.54/77,297.49
  6. Step 6: Final answer
    x = 60,389.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.