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Finding the Fourth Proportional to 79,843.45, 119,790.45 and 23,683.78

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Solution

The fourth proportional to 79,843.45, 119,790.45 and 23,683.78 is: 35,533.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,843.45 : 119,790.45 = 23,683.78 : x
  2. Step 2: Convert to fraction form
    79,843.45/119,790.45 = 23,683.78/x
  3. Step 3: Cross multiply
    79,843.45x = 119,790.45 × 23,683.78
  4. Step 4: Simplify right side
    79,843.45x = 2,837,090,663.90
  5. Step 5: Solve for x
    x = 2,837,090,663.90/79,843.45
  6. Step 6: Final answer
    x = 35,533.17

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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.