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Finding the Fourth Proportional to 79,798.21, 110,122.30 and 43,989.51

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Solution

The fourth proportional to 79,798.21, 110,122.30 and 43,989.51 is: 60,705.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,798.21 : 110,122.30 = 43,989.51 : x
  2. Step 2: Convert to fraction form
    79,798.21/110,122.30 = 43,989.51/x
  3. Step 3: Cross multiply
    79,798.21x = 110,122.30 × 43,989.51
  4. Step 4: Simplify right side
    79,798.21x = 4,844,226,485.02
  5. Step 5: Solve for x
    x = 4,844,226,485.02/79,798.21
  6. Step 6: Final answer
    x = 60,705.95

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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.