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Finding the Fourth Proportional to 331,796.61, 497,693.36 and 104,108.90

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Solution

The fourth proportional to 331,796.61, 497,693.36 and 104,108.90 is: 156,162.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,796.61 : 497,693.36 = 104,108.90 : x
  2. Step 2: Convert to fraction form
    331,796.61/497,693.36 = 104,108.90/x
  3. Step 3: Cross multiply
    331,796.61x = 497,693.36 × 104,108.90
  4. Step 4: Simplify right side
    331,796.61x = 51,814,305,237.89
  5. Step 5: Solve for x
    x = 51,814,305,237.89/331,796.61
  6. Step 6: Final answer
    x = 156,162.85

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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.