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Finding the Fourth Proportional to 168,609.40, 252,877.65 and 73,839.40

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Solution

The fourth proportional to 168,609.40, 252,877.65 and 73,839.40 is: 110,743.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,609.40 : 252,877.65 = 73,839.40 : x
  2. Step 2: Convert to fraction form
    168,609.40/252,877.65 = 73,839.40/x
  3. Step 3: Cross multiply
    168,609.40x = 252,877.65 × 73,839.40
  4. Step 4: Simplify right side
    168,609.40x = 18,672,333,949.41
  5. Step 5: Solve for x
    x = 18,672,333,949.41/168,609.40
  6. Step 6: Final answer
    x = 110,743.14

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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.