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Finding the Fourth Proportional to 307,788.58, 424,755.44 and 193,072.11

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Solution

The fourth proportional to 307,788.58, 424,755.44 and 193,072.11 is: 266,444.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,788.58 : 424,755.44 = 193,072.11 : x
  2. Step 2: Convert to fraction form
    307,788.58/424,755.44 = 193,072.11/x
  3. Step 3: Cross multiply
    307,788.58x = 424,755.44 × 193,072.11
  4. Step 4: Simplify right side
    307,788.58x = 82,008,429,034.78
  5. Step 5: Solve for x
    x = 82,008,429,034.78/307,788.58
  6. Step 6: Final answer
    x = 266,444.03

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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.