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Finding the Fourth Proportional to 79,796.20, 110,114.34 and 43,986.16

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Solution

The fourth proportional to 79,796.20, 110,114.34 and 43,986.16 is: 60,698.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,796.20 : 110,114.34 = 43,986.16 : x
  2. Step 2: Convert to fraction form
    79,796.20/110,114.34 = 43,986.16/x
  3. Step 3: Cross multiply
    79,796.20x = 110,114.34 × 43,986.16
  4. Step 4: Simplify right side
    79,796.20x = 4,843,506,977.53
  5. Step 5: Solve for x
    x = 4,843,506,977.53/79,796.20
  6. Step 6: Final answer
    x = 60,698.47

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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.