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Finding the Fourth Proportional to 168,014.60, 252,021.90 and 84,033.80

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Solution

The fourth proportional to 168,014.60, 252,021.90 and 84,033.80 is: 126,050.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,014.60 : 252,021.90 = 84,033.80 : x
  2. Step 2: Convert to fraction form
    168,014.60/252,021.90 = 84,033.80/x
  3. Step 3: Cross multiply
    168,014.60x = 252,021.90 × 84,033.80
  4. Step 4: Simplify right side
    168,014.60x = 21,178,357,940.22
  5. Step 5: Solve for x
    x = 21,178,357,940.22/168,014.60
  6. Step 6: Final answer
    x = 126,050.70

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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.