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Finding the Fourth Proportional to 353,777.16, 488,206.16 and 192,629.28

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Solution

The fourth proportional to 353,777.16, 488,206.16 and 192,629.28 is: 265,824.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,777.16 : 488,206.16 = 192,629.28 : x
  2. Step 2: Convert to fraction form
    353,777.16/488,206.16 = 192,629.28/x
  3. Step 3: Cross multiply
    353,777.16x = 488,206.16 × 192,629.28
  4. Step 4: Simplify right side
    353,777.16x = 94,042,800,129.22
  5. Step 5: Solve for x
    x = 94,042,800,129.22/353,777.16
  6. Step 6: Final answer
    x = 265,824.96

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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.