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Finding the Fourth Proportional to 316,550.60, 436,839.62 and 173,310.60

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Solution

The fourth proportional to 316,550.60, 436,839.62 and 173,310.60 is: 239,168.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,550.60 : 436,839.62 = 173,310.60 : x
  2. Step 2: Convert to fraction form
    316,550.60/436,839.62 = 173,310.60/x
  3. Step 3: Cross multiply
    316,550.60x = 436,839.62 × 173,310.60
  4. Step 4: Simplify right side
    316,550.60x = 75,708,935,779.42
  5. Step 5: Solve for x
    x = 75,708,935,779.42/316,550.60
  6. Step 6: Final answer
    x = 239,168.52

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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.