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Finding the Fourth Proportional to 353,782.94, 488,218.39 and 192,637.60

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Solution

The fourth proportional to 353,782.94, 488,218.39 and 192,637.60 is: 265,838.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,782.94 : 488,218.39 = 192,637.60 : x
  2. Step 2: Convert to fraction form
    353,782.94/488,218.39 = 192,637.60/x
  3. Step 3: Cross multiply
    353,782.94x = 488,218.39 × 192,637.60
  4. Step 4: Simplify right side
    353,782.94x = 94,049,218,596.44
  5. Step 5: Solve for x
    x = 94,049,218,596.44/353,782.94
  6. Step 6: Final answer
    x = 265,838.76

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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.