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Finding the Fourth Proportional to 368,422.90, 552,634.35 and 131,773.30

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Solution

The fourth proportional to 368,422.90, 552,634.35 and 131,773.30 is: 197,659.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,422.90 : 552,634.35 = 131,773.30 : x
  2. Step 2: Convert to fraction form
    368,422.90/552,634.35 = 131,773.30/x
  3. Step 3: Cross multiply
    368,422.90x = 552,634.35 × 131,773.30
  4. Step 4: Simplify right side
    368,422.90x = 72,822,451,992.86
  5. Step 5: Solve for x
    x = 72,822,451,992.86/368,422.90
  6. Step 6: Final answer
    x = 197,659.95

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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.