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Finding the Fourth Proportional to 161,727.20, 242,245.20 and 134,079.20

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Solution

The fourth proportional to 161,727.20, 242,245.20 and 134,079.20 is: 200,832.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,727.20 : 242,245.20 = 134,079.20 : x
  2. Step 2: Convert to fraction form
    161,727.20/242,245.20 = 134,079.20/x
  3. Step 3: Cross multiply
    161,727.20x = 242,245.20 × 134,079.20
  4. Step 4: Simplify right side
    161,727.20x = 32,480,042,619.84
  5. Step 5: Solve for x
    x = 32,480,042,619.84/161,727.20
  6. Step 6: Final answer
    x = 200,832.28

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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.