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Finding the Fourth Proportional to 331,956.55, 497,679.60 and 171,860.86

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Solution

The fourth proportional to 331,956.55, 497,679.60 and 171,860.86 is: 257,659.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,956.55 : 497,679.60 = 171,860.86 : x
  2. Step 2: Convert to fraction form
    331,956.55/497,679.60 = 171,860.86/x
  3. Step 3: Cross multiply
    331,956.55x = 497,679.60 × 171,860.86
  4. Step 4: Simplify right side
    331,956.55x = 85,531,644,060.46
  5. Step 5: Solve for x
    x = 85,531,644,060.46/331,956.55
  6. Step 6: Final answer
    x = 257,659.15

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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.