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Finding the Fourth Proportional to 78,873, 118,310.31 and 23,469

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Solution

The fourth proportional to 78,873, 118,310.31 and 23,469 is: 35,203.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,873 : 118,310.31 = 23,469 : x
  2. Step 2: Convert to fraction form
    78,873/118,310.31 = 23,469/x
  3. Step 3: Cross multiply
    78,873x = 118,310.31 × 23,469
  4. Step 4: Simplify right side
    78,873x = 2,776,624,665.39
  5. Step 5: Solve for x
    x = 2,776,624,665.39/78,873
  6. Step 6: Final answer
    x = 35,203.74

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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.