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Finding the Fourth Proportional to 177,121.20, 266,200.20 and 154,311.60

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Solution

The fourth proportional to 177,121.20, 266,200.20 and 154,311.60 is: 231,919.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,121.20 : 266,200.20 = 154,311.60 : x
  2. Step 2: Convert to fraction form
    177,121.20/266,200.20 = 154,311.60/x
  3. Step 3: Cross multiply
    177,121.20x = 266,200.20 × 154,311.60
  4. Step 4: Simplify right side
    177,121.20x = 41,077,778,782.32
  5. Step 5: Solve for x
    x = 41,077,778,782.32/177,121.20
  6. Step 6: Final answer
    x = 231,919.04

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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.