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Finding the Fourth Proportional to 382,207.70, 573,311.55 and 115,955.30

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Solution

The fourth proportional to 382,207.70, 573,311.55 and 115,955.30 is: 173,932.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,207.70 : 573,311.55 = 115,955.30 : x
  2. Step 2: Convert to fraction form
    382,207.70/573,311.55 = 115,955.30/x
  3. Step 3: Cross multiply
    382,207.70x = 573,311.55 × 115,955.30
  4. Step 4: Simplify right side
    382,207.70x = 66,478,512,773.72
  5. Step 5: Solve for x
    x = 66,478,512,773.72/382,207.70
  6. Step 6: Final answer
    x = 173,932.95

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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.