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Finding the Fourth Proportional to 352,070.97, 485,858.22 and 190,926

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Solution

The fourth proportional to 352,070.97, 485,858.22 and 190,926 is: 263,478.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,070.97 : 485,858.22 = 190,926 : x
  2. Step 2: Convert to fraction form
    352,070.97/485,858.22 = 190,926/x
  3. Step 3: Cross multiply
    352,070.97x = 485,858.22 × 190,926
  4. Step 4: Simplify right side
    352,070.97x = 92,762,966,511.72
  5. Step 5: Solve for x
    x = 92,762,966,511.72/352,070.97
  6. Step 6: Final answer
    x = 263,478.03

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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.