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Finding the Fourth Proportional to 274,619.20, 411,621.60 and 116,820.80

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Solution

The fourth proportional to 274,619.20, 411,621.60 and 116,820.80 is: 175,100.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,619.20 : 411,621.60 = 116,820.80 : x
  2. Step 2: Convert to fraction form
    274,619.20/411,621.60 = 116,820.80/x
  3. Step 3: Cross multiply
    274,619.20x = 411,621.60 × 116,820.80
  4. Step 4: Simplify right side
    274,619.20x = 48,085,964,609.28
  5. Step 5: Solve for x
    x = 48,085,964,609.28/274,619.20
  6. Step 6: Final answer
    x = 175,100.52

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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.