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Finding the Fourth Proportional to 305,808.43, 422,025.48 and 169,844.01

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Solution

The fourth proportional to 305,808.43, 422,025.48 and 169,844.01 is: 234,390.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,808.43 : 422,025.48 = 169,844.01 : x
  2. Step 2: Convert to fraction form
    305,808.43/422,025.48 = 169,844.01/x
  3. Step 3: Cross multiply
    305,808.43x = 422,025.48 × 169,844.01
  4. Step 4: Simplify right side
    305,808.43x = 71,678,499,845.37
  5. Step 5: Solve for x
    x = 71,678,499,845.37/305,808.43
  6. Step 6: Final answer
    x = 234,390.20

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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.