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Finding the Fourth Proportional to 168,363.70, 252,580.65 and 56,078.80

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Solution

The fourth proportional to 168,363.70, 252,580.65 and 56,078.80 is: 84,129.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,363.70 : 252,580.65 = 56,078.80 : x
  2. Step 2: Convert to fraction form
    168,363.70/252,580.65 = 56,078.80/x
  3. Step 3: Cross multiply
    168,363.70x = 252,580.65 × 56,078.80
  4. Step 4: Simplify right side
    168,363.70x = 14,164,419,755.22
  5. Step 5: Solve for x
    x = 14,164,419,755.22/168,363.70
  6. Step 6: Final answer
    x = 84,129.89

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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.