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Finding the Fourth Proportional to 115,940.30, 173,809.20 and 44,911.40

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Solution

The fourth proportional to 115,940.30, 173,809.20 and 44,911.40 is: 67,327.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,940.30 : 173,809.20 = 44,911.40 : x
  2. Step 2: Convert to fraction form
    115,940.30/173,809.20 = 44,911.40/x
  3. Step 3: Cross multiply
    115,940.30x = 173,809.20 × 44,911.40
  4. Step 4: Simplify right side
    115,940.30x = 7,806,014,504.88
  5. Step 5: Solve for x
    x = 7,806,014,504.88/115,940.30
  6. Step 6: Final answer
    x = 67,327.88

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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.