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Finding the Fourth Proportional to 188,966.70, 260,774.73 and 104,083.56

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Solution

The fourth proportional to 188,966.70, 260,774.73 and 104,083.56 is: 143,635.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,966.70 : 260,774.73 = 104,083.56 : x
  2. Step 2: Convert to fraction form
    188,966.70/260,774.73 = 104,083.56/x
  3. Step 3: Cross multiply
    188,966.70x = 260,774.73 × 104,083.56
  4. Step 4: Simplify right side
    188,966.70x = 27,142,362,256.44
  5. Step 5: Solve for x
    x = 27,142,362,256.44/188,966.70
  6. Step 6: Final answer
    x = 143,635.69

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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.