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Finding the Fourth Proportional to 79,201.19, 109,297.73 and 43,393.49

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Solution

The fourth proportional to 79,201.19, 109,297.73 and 43,393.49 is: 59,883.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,201.19 : 109,297.73 = 43,393.49 : x
  2. Step 2: Convert to fraction form
    79,201.19/109,297.73 = 43,393.49/x
  3. Step 3: Cross multiply
    79,201.19x = 109,297.73 × 43,393.49
  4. Step 4: Simplify right side
    79,201.19x = 4,742,809,953.78
  5. Step 5: Solve for x
    x = 4,742,809,953.78/79,201.19
  6. Step 6: Final answer
    x = 59,883.06

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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.