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Finding the Fourth Proportional to 320,691.08, 442,600.40 and 184,698.56

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Solution

The fourth proportional to 320,691.08, 442,600.40 and 184,698.56 is: 254,910.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,691.08 : 442,600.40 = 184,698.56 : x
  2. Step 2: Convert to fraction form
    320,691.08/442,600.40 = 184,698.56/x
  3. Step 3: Cross multiply
    320,691.08x = 442,600.40 × 184,698.56
  4. Step 4: Simplify right side
    320,691.08x = 81,747,658,103.67
  5. Step 5: Solve for x
    x = 81,747,658,103.67/320,691.08
  6. Step 6: Final answer
    x = 254,910.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.