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Finding the Fourth Proportional to 118,166.76, 163,103.85 and 67,206.96

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Solution

The fourth proportional to 118,166.76, 163,103.85 and 67,206.96 is: 92,764.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,166.76 : 163,103.85 = 67,206.96 : x
  2. Step 2: Convert to fraction form
    118,166.76/163,103.85 = 67,206.96/x
  3. Step 3: Cross multiply
    118,166.76x = 163,103.85 × 67,206.96
  4. Step 4: Simplify right side
    118,166.76x = 10,961,713,922.80
  5. Step 5: Solve for x
    x = 10,961,713,922.80/118,166.76
  6. Step 6: Final answer
    x = 92,764.78

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1.5x scale

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.