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Finding the Fourth Proportional to 80,122.60, 110,564.70 and 43,816.88

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Solution

The fourth proportional to 80,122.60, 110,564.70 and 43,816.88 is: 60,464.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,122.60 : 110,564.70 = 43,816.88 : x
  2. Step 2: Convert to fraction form
    80,122.60/110,564.70 = 43,816.88/x
  3. Step 3: Cross multiply
    80,122.60x = 110,564.70 × 43,816.88
  4. Step 4: Simplify right side
    80,122.60x = 4,844,600,192.14
  5. Step 5: Solve for x
    x = 4,844,600,192.14/80,122.60
  6. Step 6: Final answer
    x = 60,464.84

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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.