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Finding the Fourth Proportional to 168,023.10, 252,034.65 and 84,042.30

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Solution

The fourth proportional to 168,023.10, 252,034.65 and 84,042.30 is: 126,063.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,023.10 : 252,034.65 = 84,042.30 : x
  2. Step 2: Convert to fraction form
    168,023.10/252,034.65 = 84,042.30/x
  3. Step 3: Cross multiply
    168,023.10x = 252,034.65 × 84,042.30
  4. Step 4: Simplify right side
    168,023.10x = 21,181,571,665.70
  5. Step 5: Solve for x
    x = 21,181,571,665.70/168,023.10
  6. Step 6: Final answer
    x = 126,063.45

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1.5x scale

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.