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Finding the Fourth Proportional to 352,166.88, 485,987.42 and 191,021.52

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Solution

The fourth proportional to 352,166.88, 485,987.42 and 191,021.52 is: 263,608.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,166.88 : 485,987.42 = 191,021.52 : x
  2. Step 2: Convert to fraction form
    352,166.88/485,987.42 = 191,021.52/x
  3. Step 3: Cross multiply
    352,166.88x = 485,987.42 × 191,021.52
  4. Step 4: Simplify right side
    352,166.88x = 92,834,055,669.28
  5. Step 5: Solve for x
    x = 92,834,055,669.28/352,166.88
  6. Step 6: Final answer
    x = 263,608.14

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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.