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Finding the Fourth Proportional to 79,015.60, 118,480.20 and 32,215.60

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Solution

The fourth proportional to 79,015.60, 118,480.20 and 32,215.60 is: 48,305.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,015.60 : 118,480.20 = 32,215.60 : x
  2. Step 2: Convert to fraction form
    79,015.60/118,480.20 = 32,215.60/x
  3. Step 3: Cross multiply
    79,015.60x = 118,480.20 × 32,215.60
  4. Step 4: Simplify right side
    79,015.60x = 3,816,910,731.12
  5. Step 5: Solve for x
    x = 3,816,910,731.12/79,015.60
  6. Step 6: Final answer
    x = 48,305.79

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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.