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Finding the Fourth Proportional to 193,912.60, 290,771.70 and 88,612.60

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Solution

The fourth proportional to 193,912.60, 290,771.70 and 88,612.60 is: 132,874.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,912.60 : 290,771.70 = 88,612.60 : x
  2. Step 2: Convert to fraction form
    193,912.60/290,771.70 = 88,612.60/x
  3. Step 3: Cross multiply
    193,912.60x = 290,771.70 × 88,612.60
  4. Step 4: Simplify right side
    193,912.60x = 25,766,036,343.42
  5. Step 5: Solve for x
    x = 25,766,036,343.42/193,912.60
  6. Step 6: Final answer
    x = 132,874.48

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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.