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Finding the Fourth Proportional to 355,995.51, 491,272.02 and 192,651.90

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Solution

The fourth proportional to 355,995.51, 491,272.02 and 192,651.90 is: 265,858.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,995.51 : 491,272.02 = 192,651.90 : x
  2. Step 2: Convert to fraction form
    355,995.51/491,272.02 = 192,651.90/x
  3. Step 3: Cross multiply
    355,995.51x = 491,272.02 × 192,651.90
  4. Step 4: Simplify right side
    355,995.51x = 94,644,488,990.97
  5. Step 5: Solve for x
    x = 94,644,488,990.97/355,995.51
  6. Step 6: Final answer
    x = 265,858.66

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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.