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Finding the Fourth Proportional to 127,680.60, 191,520.90 and 32,910.60

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Solution

The fourth proportional to 127,680.60, 191,520.90 and 32,910.60 is: 49,365.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,680.60 : 191,520.90 = 32,910.60 : x
  2. Step 2: Convert to fraction form
    127,680.60/191,520.90 = 32,910.60/x
  3. Step 3: Cross multiply
    127,680.60x = 191,520.90 × 32,910.60
  4. Step 4: Simplify right side
    127,680.60x = 6,303,067,731.54
  5. Step 5: Solve for x
    x = 6,303,067,731.54/127,680.60
  6. Step 6: Final answer
    x = 49,365.90

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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.