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Finding the Fourth Proportional to 247,640.10, 371,455.83 and 60,653.22

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Solution

The fourth proportional to 247,640.10, 371,455.83 and 60,653.22 is: 90,978.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,640.10 : 371,455.83 = 60,653.22 : x
  2. Step 2: Convert to fraction form
    247,640.10/371,455.83 = 60,653.22/x
  3. Step 3: Cross multiply
    247,640.10x = 371,455.83 × 60,653.22
  4. Step 4: Simplify right side
    247,640.10x = 22,529,992,177.27
  5. Step 5: Solve for x
    x = 22,529,992,177.27/247,640.10
  6. Step 6: Final answer
    x = 90,978.77

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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.