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Finding the Fourth Proportional to 118,085.20, 177,127.80 and 48,014.80

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Solution

The fourth proportional to 118,085.20, 177,127.80 and 48,014.80 is: 72,022.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,085.20 : 177,127.80 = 48,014.80 : x
  2. Step 2: Convert to fraction form
    118,085.20/177,127.80 = 48,014.80/x
  3. Step 3: Cross multiply
    118,085.20x = 177,127.80 × 48,014.80
  4. Step 4: Simplify right side
    118,085.20x = 8,504,755,891.44
  5. Step 5: Solve for x
    x = 8,504,755,891.44/118,085.20
  6. Step 6: Final answer
    x = 72,022.20

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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.