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Finding the Fourth Proportional to 353,935.51, 488,435.27 and 192,791.88

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Solution

The fourth proportional to 353,935.51, 488,435.27 and 192,791.88 is: 266,055.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,935.51 : 488,435.27 = 192,791.88 : x
  2. Step 2: Convert to fraction form
    353,935.51/488,435.27 = 192,791.88/x
  3. Step 3: Cross multiply
    353,935.51x = 488,435.27 × 192,791.88
  4. Step 4: Simplify right side
    353,935.51x = 94,166,352,997.65
  5. Step 5: Solve for x
    x = 94,166,352,997.65/353,935.51
  6. Step 6: Final answer
    x = 266,055.12

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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.