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Finding the Fourth Proportional to 129,294.60, 193,940.16 and 50,464.20

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Solution

The fourth proportional to 129,294.60, 193,940.16 and 50,464.20 is: 75,695.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,294.60 : 193,940.16 = 50,464.20 : x
  2. Step 2: Convert to fraction form
    129,294.60/193,940.16 = 50,464.20/x
  3. Step 3: Cross multiply
    129,294.60x = 193,940.16 × 50,464.20
  4. Step 4: Simplify right side
    129,294.60x = 9,787,035,022.27
  5. Step 5: Solve for x
    x = 9,787,035,022.27/129,294.60
  6. Step 6: Final answer
    x = 75,695.62

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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.