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Finding the Fourth Proportional to 188,991.48, 260,808.89 and 104,108.34

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Solution

The fourth proportional to 188,991.48, 260,808.89 and 104,108.34 is: 143,669.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,991.48 : 260,808.89 = 104,108.34 : x
  2. Step 2: Convert to fraction form
    188,991.48/260,808.89 = 104,108.34/x
  3. Step 3: Cross multiply
    188,991.48x = 260,808.89 × 104,108.34
  4. Step 4: Simplify right side
    188,991.48x = 27,152,380,074.60
  5. Step 5: Solve for x
    x = 27,152,380,074.60/188,991.48
  6. Step 6: Final answer
    x = 143,669.86

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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.