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Finding the Fourth Proportional to 174,520.80, 261,781.20 and 79,750.80

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Solution

The fourth proportional to 174,520.80, 261,781.20 and 79,750.80 is: 119,626.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,520.80 : 261,781.20 = 79,750.80 : x
  2. Step 2: Convert to fraction form
    174,520.80/261,781.20 = 79,750.80/x
  3. Step 3: Cross multiply
    174,520.80x = 261,781.20 × 79,750.80
  4. Step 4: Simplify right side
    174,520.80x = 20,877,260,124.96
  5. Step 5: Solve for x
    x = 20,877,260,124.96/174,520.80
  6. Step 6: Final answer
    x = 119,626.20

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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.