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Finding the Fourth Proportional to 118,770.44, 163,894.79 and 67,771.22

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Solution

The fourth proportional to 118,770.44, 163,894.79 and 67,771.22 is: 93,519.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,770.44 : 163,894.79 = 67,771.22 : x
  2. Step 2: Convert to fraction form
    118,770.44/163,894.79 = 67,771.22/x
  3. Step 3: Cross multiply
    118,770.44x = 163,894.79 × 67,771.22
  4. Step 4: Simplify right side
    118,770.44x = 11,107,349,219.90
  5. Step 5: Solve for x
    x = 11,107,349,219.90/118,770.44
  6. Step 6: Final answer
    x = 93,519.48

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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.