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Finding the Fourth Proportional to 353,777.76, 488,203.92 and 192,629.28

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Solution

The fourth proportional to 353,777.76, 488,203.92 and 192,629.28 is: 265,823.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,777.76 : 488,203.92 = 192,629.28 : x
  2. Step 2: Convert to fraction form
    353,777.76/488,203.92 = 192,629.28/x
  3. Step 3: Cross multiply
    353,777.76x = 488,203.92 × 192,629.28
  4. Step 4: Simplify right side
    353,777.76x = 94,042,369,602.78
  5. Step 5: Solve for x
    x = 94,042,369,602.78/353,777.76
  6. Step 6: Final answer
    x = 265,823.29

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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.