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Finding the Fourth Proportional to 352,171.64, 485,983.73 and 191,021.33

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Solution

The fourth proportional to 352,171.64, 485,983.73 and 191,021.33 is: 263,602.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,171.64 : 485,983.73 = 191,021.33 : x
  2. Step 2: Convert to fraction form
    352,171.64/485,983.73 = 191,021.33/x
  3. Step 3: Cross multiply
    352,171.64x = 485,983.73 × 191,021.33
  4. Step 4: Simplify right side
    352,171.64x = 92,833,260,155.47
  5. Step 5: Solve for x
    x = 92,833,260,155.47/352,171.64
  6. Step 6: Final answer
    x = 263,602.31

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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.