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Finding the Fourth Proportional to 352,003.02, 485,765.22 and 190,858.11

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Solution

The fourth proportional to 352,003.02, 485,765.22 and 190,858.11 is: 263,384.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,003.02 : 485,765.22 = 190,858.11 : x
  2. Step 2: Convert to fraction form
    352,003.02/485,765.22 = 190,858.11/x
  3. Step 3: Cross multiply
    352,003.02x = 485,765.22 × 190,858.11
  4. Step 4: Simplify right side
    352,003.02x = 92,712,231,792.93
  5. Step 5: Solve for x
    x = 92,712,231,792.93/352,003.02
  6. Step 6: Final answer
    x = 263,384.76

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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.