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Finding the Fourth Proportional to 109,842.90, 164,764.35 and 50,793.90

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Solution

The fourth proportional to 109,842.90, 164,764.35 and 50,793.90 is: 76,190.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,842.90 : 164,764.35 = 50,793.90 : x
  2. Step 2: Convert to fraction form
    109,842.90/164,764.35 = 50,793.90/x
  3. Step 3: Cross multiply
    109,842.90x = 164,764.35 × 50,793.90
  4. Step 4: Simplify right side
    109,842.90x = 8,369,023,917.47
  5. Step 5: Solve for x
    x = 8,369,023,917.47/109,842.90
  6. Step 6: Final answer
    x = 76,190.85

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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.