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Finding the Fourth Proportional to 163,080.80, 244,390.80 and 120,629.60

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Solution

The fourth proportional to 163,080.80, 244,390.80 and 120,629.60 is: 180,773.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,080.80 : 244,390.80 = 120,629.60 : x
  2. Step 2: Convert to fraction form
    163,080.80/244,390.80 = 120,629.60/x
  3. Step 3: Cross multiply
    163,080.80x = 244,390.80 × 120,629.60
  4. Step 4: Simplify right side
    163,080.80x = 29,480,764,447.68
  5. Step 5: Solve for x
    x = 29,480,764,447.68/163,080.80
  6. Step 6: Final answer
    x = 180,773.97

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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.