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Finding the Fourth Proportional to 168,024.60, 252,109.80 and 84,918.60

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Solution

The fourth proportional to 168,024.60, 252,109.80 and 84,918.60 is: 127,414.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,024.60 : 252,109.80 = 84,918.60 : x
  2. Step 2: Convert to fraction form
    168,024.60/252,109.80 = 84,918.60/x
  3. Step 3: Cross multiply
    168,024.60x = 252,109.80 × 84,918.60
  4. Step 4: Simplify right side
    168,024.60x = 21,408,811,262.28
  5. Step 5: Solve for x
    x = 21,408,811,262.28/168,024.60
  6. Step 6: Final answer
    x = 127,414.74

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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.