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Finding the Fourth Proportional to 189,793.30, 261,914.82 and 104,910.34

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Solution

The fourth proportional to 189,793.30, 261,914.82 and 104,910.34 is: 144,776.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,793.30 : 261,914.82 = 104,910.34 : x
  2. Step 2: Convert to fraction form
    189,793.30/261,914.82 = 104,910.34/x
  3. Step 3: Cross multiply
    189,793.30x = 261,914.82 × 104,910.34
  4. Step 4: Simplify right side
    189,793.30x = 27,477,572,817.24
  5. Step 5: Solve for x
    x = 27,477,572,817.24/189,793.30
  6. Step 6: Final answer
    x = 144,776.31

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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.