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Finding the Fourth Proportional to 345,894.73, 477,336.49 and 190,851.38

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Solution

The fourth proportional to 345,894.73, 477,336.49 and 190,851.38 is: 263,375.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,894.73 : 477,336.49 = 190,851.38 : x
  2. Step 2: Convert to fraction form
    345,894.73/477,336.49 = 190,851.38/x
  3. Step 3: Cross multiply
    345,894.73x = 477,336.49 × 190,851.38
  4. Step 4: Simplify right side
    345,894.73x = 91,100,326,767.06
  5. Step 5: Solve for x
    x = 91,100,326,767.06/345,894.73
  6. Step 6: Final answer
    x = 263,375.88

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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.