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Finding the Fourth Proportional to 199,122.60, 299,144.70 and 136,914.60

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Solution

The fourth proportional to 199,122.60, 299,144.70 and 136,914.60 is: 205,688.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,122.60 : 299,144.70 = 136,914.60 : x
  2. Step 2: Convert to fraction form
    199,122.60/299,144.70 = 136,914.60/x
  3. Step 3: Cross multiply
    199,122.60x = 299,144.70 × 136,914.60
  4. Step 4: Simplify right side
    199,122.60x = 40,957,276,942.62
  5. Step 5: Solve for x
    x = 40,957,276,942.62/199,122.60
  6. Step 6: Final answer
    x = 205,688.74

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