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Finding the Fourth Proportional to 331,797.61, 497,694.85 and 104,109.90

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Solution

The fourth proportional to 331,797.61, 497,694.85 and 104,109.90 is: 156,164.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,797.61 : 497,694.85 = 104,109.90 : x
  2. Step 2: Convert to fraction form
    331,797.61/497,694.85 = 104,109.90/x
  3. Step 3: Cross multiply
    331,797.61x = 497,694.85 × 104,109.90
  4. Step 4: Simplify right side
    331,797.61x = 51,814,961,064.02
  5. Step 5: Solve for x
    x = 51,814,961,064.02/331,797.61
  6. Step 6: Final answer
    x = 156,164.36

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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.