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Finding the Fourth Proportional to 323,299.86, 484,949.78 and 98,661.44

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Solution

The fourth proportional to 323,299.86, 484,949.78 and 98,661.44 is: 147,992.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,299.86 : 484,949.78 = 98,661.44 : x
  2. Step 2: Convert to fraction form
    323,299.86/484,949.78 = 98,661.44/x
  3. Step 3: Cross multiply
    323,299.86x = 484,949.78 × 98,661.44
  4. Step 4: Simplify right side
    323,299.86x = 47,845,845,266.50
  5. Step 5: Solve for x
    x = 47,845,845,266.50/323,299.86
  6. Step 6: Final answer
    x = 147,992.16

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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.