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Finding the Fourth Proportional to 196,503.70, 294,755.55 and 71,893.30

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Solution

The fourth proportional to 196,503.70, 294,755.55 and 71,893.30 is: 107,839.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,503.70 : 294,755.55 = 71,893.30 : x
  2. Step 2: Convert to fraction form
    196,503.70/294,755.55 = 71,893.30/x
  3. Step 3: Cross multiply
    196,503.70x = 294,755.55 × 71,893.30
  4. Step 4: Simplify right side
    196,503.70x = 21,190,949,182.82
  5. Step 5: Solve for x
    x = 21,190,949,182.82/196,503.70
  6. Step 6: Final answer
    x = 107,839.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.