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Finding the Fourth Proportional to 316,447.44, 436,701.60 and 173,204.43

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Solution

The fourth proportional to 316,447.44, 436,701.60 and 173,204.43 is: 239,024.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,447.44 : 436,701.60 = 173,204.43 : x
  2. Step 2: Convert to fraction form
    316,447.44/436,701.60 = 173,204.43/x
  3. Step 3: Cross multiply
    316,447.44x = 436,701.60 × 173,204.43
  4. Step 4: Simplify right side
    316,447.44x = 75,638,651,708.09
  5. Step 5: Solve for x
    x = 75,638,651,708.09/316,447.44
  6. Step 6: Final answer
    x = 239,024.38

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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.