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Finding the Fourth Proportional to 208,297.50, 312,499.53 and 60,553.50

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Solution

The fourth proportional to 208,297.50, 312,499.53 and 60,553.50 is: 90,845.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,297.50 : 312,499.53 = 60,553.50 : x
  2. Step 2: Convert to fraction form
    208,297.50/312,499.53 = 60,553.50/x
  3. Step 3: Cross multiply
    208,297.50x = 312,499.53 × 60,553.50
  4. Step 4: Simplify right side
    208,297.50x = 18,922,940,289.86
  5. Step 5: Solve for x
    x = 18,922,940,289.86/208,297.50
  6. Step 6: Final answer
    x = 90,845.74

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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.