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Finding the Fourth Proportional to 71,770.74, 98,940.97 and 50,483.94

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Solution

The fourth proportional to 71,770.74, 98,940.97 and 50,483.94 is: 69,595.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,770.74 : 98,940.97 = 50,483.94 : x
  2. Step 2: Convert to fraction form
    71,770.74/98,940.97 = 50,483.94/x
  3. Step 3: Cross multiply
    71,770.74x = 98,940.97 × 50,483.94
  4. Step 4: Simplify right side
    71,770.74x = 4,994,929,993.02
  5. Step 5: Solve for x
    x = 4,994,929,993.02/71,770.74
  6. Step 6: Final answer
    x = 69,595.63

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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.