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Finding the Fourth Proportional to 111,960.60, 167,979.30 and 49,675.80

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Solution

The fourth proportional to 111,960.60, 167,979.30 and 49,675.80 is: 74,530.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,960.60 : 167,979.30 = 49,675.80 : x
  2. Step 2: Convert to fraction form
    111,960.60/167,979.30 = 49,675.80/x
  3. Step 3: Cross multiply
    111,960.60x = 167,979.30 × 49,675.80
  4. Step 4: Simplify right side
    111,960.60x = 8,344,506,110.94
  5. Step 5: Solve for x
    x = 8,344,506,110.94/111,960.60
  6. Step 6: Final answer
    x = 74,530.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.