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Finding the Fourth Proportional to 207,447.67, 311,226.87 and 74,341.38

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Solution

The fourth proportional to 207,447.67, 311,226.87 and 74,341.38 is: 111,531.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,447.67 : 311,226.87 = 74,341.38 : x
  2. Step 2: Convert to fraction form
    207,447.67/311,226.87 = 74,341.38/x
  3. Step 3: Cross multiply
    207,447.67x = 311,226.87 × 74,341.38
  4. Step 4: Simplify right side
    207,447.67x = 23,137,035,008.88
  5. Step 5: Solve for x
    x = 23,137,035,008.88/207,447.67
  6. Step 6: Final answer
    x = 111,531.91

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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.