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Finding the Fourth Proportional to 168,772.80, 252,867.60 and 79,834.80

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Solution

The fourth proportional to 168,772.80, 252,867.60 and 79,834.80 is: 119,614.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,772.80 : 252,867.60 = 79,834.80 : x
  2. Step 2: Convert to fraction form
    168,772.80/252,867.60 = 79,834.80/x
  3. Step 3: Cross multiply
    168,772.80x = 252,867.60 × 79,834.80
  4. Step 4: Simplify right side
    168,772.80x = 20,187,634,272.48
  5. Step 5: Solve for x
    x = 20,187,634,272.48/168,772.80
  6. Step 6: Final answer
    x = 119,614.26

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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.