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Finding the Fourth Proportional to 199,236.59, 298,901.61 and 79,300.80

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Solution

The fourth proportional to 199,236.59, 298,901.61 and 79,300.80 is: 118,969.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,236.59 : 298,901.61 = 79,300.80 : x
  2. Step 2: Convert to fraction form
    199,236.59/298,901.61 = 79,300.80/x
  3. Step 3: Cross multiply
    199,236.59x = 298,901.61 × 79,300.80
  4. Step 4: Simplify right side
    199,236.59x = 23,703,136,397.78
  5. Step 5: Solve for x
    x = 23,703,136,397.78/199,236.59
  6. Step 6: Final answer
    x = 118,969.80

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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.