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Finding the Fourth Proportional to 110,829.80, 166,244.70 and 109,080.20

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Solution

The fourth proportional to 110,829.80, 166,244.70 and 109,080.20 is: 163,620.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,829.80 : 166,244.70 = 109,080.20 : x
  2. Step 2: Convert to fraction form
    110,829.80/166,244.70 = 109,080.20/x
  3. Step 3: Cross multiply
    110,829.80x = 166,244.70 × 109,080.20
  4. Step 4: Simplify right side
    110,829.80x = 18,134,005,124.94
  5. Step 5: Solve for x
    x = 18,134,005,124.94/110,829.80
  6. Step 6: Final answer
    x = 163,620.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.