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Finding the Fourth Proportional to 179,840.80, 270,052.80 and 120,937.60

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Solution

The fourth proportional to 179,840.80, 270,052.80 and 120,937.60 is: 181,602.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,840.80 : 270,052.80 = 120,937.60 : x
  2. Step 2: Convert to fraction form
    179,840.80/270,052.80 = 120,937.60/x
  3. Step 3: Cross multiply
    179,840.80x = 270,052.80 × 120,937.60
  4. Step 4: Simplify right side
    179,840.80x = 32,659,537,505.28
  5. Step 5: Solve for x
    x = 32,659,537,505.28/179,840.80
  6. Step 6: Final answer
    x = 181,602.49

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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.