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Finding the Fourth Proportional to 139,594.44, 192,674.54 and 79,200.44

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Solution

The fourth proportional to 139,594.44, 192,674.54 and 79,200.44 is: 109,316.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,594.44 : 192,674.54 = 79,200.44 : x
  2. Step 2: Convert to fraction form
    139,594.44/192,674.54 = 79,200.44/x
  3. Step 3: Cross multiply
    139,594.44x = 192,674.54 × 79,200.44
  4. Step 4: Simplify right side
    139,594.44x = 15,259,908,344.80
  5. Step 5: Solve for x
    x = 15,259,908,344.80/139,594.44
  6. Step 6: Final answer
    x = 109,316.02

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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.