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Finding the Fourth Proportional to 118,751.94, 163,874.46 and 67,763.73

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Solution

The fourth proportional to 118,751.94, 163,874.46 and 67,763.73 is: 93,512.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,751.94 : 163,874.46 = 67,763.73 : x
  2. Step 2: Convert to fraction form
    118,751.94/163,874.46 = 67,763.73/x
  3. Step 3: Cross multiply
    118,751.94x = 163,874.46 × 67,763.73
  4. Step 4: Simplify right side
    118,751.94x = 11,104,744,661.34
  5. Step 5: Solve for x
    x = 11,104,744,661.34/118,751.94
  6. Step 6: Final answer
    x = 93,512.11

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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.