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Finding the Fourth Proportional to 245,671.26, 339,033.89 and 133,791.48

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Solution

The fourth proportional to 245,671.26, 339,033.89 and 133,791.48 is: 184,636.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,671.26 : 339,033.89 = 133,791.48 : x
  2. Step 2: Convert to fraction form
    245,671.26/339,033.89 = 133,791.48/x
  3. Step 3: Cross multiply
    245,671.26x = 339,033.89 × 133,791.48
  4. Step 4: Simplify right side
    245,671.26x = 45,359,845,913.26
  5. Step 5: Solve for x
    x = 45,359,845,913.26/245,671.26
  6. Step 6: Final answer
    x = 184,636.35

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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.