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Finding the Fourth Proportional to 104,081.54, 143,636.00 and 63,787.52

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Solution

The fourth proportional to 104,081.54, 143,636.00 and 63,787.52 is: 88,028.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,081.54 : 143,636.00 = 63,787.52 : x
  2. Step 2: Convert to fraction form
    104,081.54/143,636.00 = 63,787.52/x
  3. Step 3: Cross multiply
    104,081.54x = 143,636.00 × 63,787.52
  4. Step 4: Simplify right side
    104,081.54x = 9,162,183,664.01
  5. Step 5: Solve for x
    x = 9,162,183,664.01/104,081.54
  6. Step 6: Final answer
    x = 88,028.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.