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Finding the Fourth Proportional to 118,758.49, 163,846.08 and 67,734.55

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Solution

The fourth proportional to 118,758.49, 163,846.08 and 67,734.55 is: 93,450.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,758.49 : 163,846.08 = 67,734.55 : x
  2. Step 2: Convert to fraction form
    118,758.49/163,846.08 = 67,734.55/x
  3. Step 3: Cross multiply
    118,758.49x = 163,846.08 × 67,734.55
  4. Step 4: Simplify right side
    118,758.49x = 11,098,040,498.06
  5. Step 5: Solve for x
    x = 11,098,040,498.06/118,758.49
  6. Step 6: Final answer
    x = 93,450.50

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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.