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Finding the Fourth Proportional to 361,493.76, 542,131.34 and 108,707.15

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Solution

The fourth proportional to 361,493.76, 542,131.34 and 108,707.15 is: 163,027.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,493.76 : 542,131.34 = 108,707.15 : x
  2. Step 2: Convert to fraction form
    361,493.76/542,131.34 = 108,707.15/x
  3. Step 3: Cross multiply
    361,493.76x = 542,131.34 × 108,707.15
  4. Step 4: Simplify right side
    361,493.76x = 58,933,553,710.85
  5. Step 5: Solve for x
    x = 58,933,553,710.85/361,493.76
  6. Step 6: Final answer
    x = 163,027.86

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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.