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Finding the Fourth Proportional to 358,072.92, 494,130.78 and 196,927.92

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Solution

The fourth proportional to 358,072.92, 494,130.78 and 196,927.92 is: 271,755.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,072.92 : 494,130.78 = 196,927.92 : x
  2. Step 2: Convert to fraction form
    358,072.92/494,130.78 = 196,927.92/x
  3. Step 3: Cross multiply
    358,072.92x = 494,130.78 × 196,927.92
  4. Step 4: Simplify right side
    358,072.92x = 97,308,146,713.38
  5. Step 5: Solve for x
    x = 97,308,146,713.38/358,072.92
  6. Step 6: Final answer
    x = 271,755.11

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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.