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Finding the Fourth Proportional to 79,195.41, 109,290.32 and 43,388.76

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Solution

The fourth proportional to 79,195.41, 109,290.32 and 43,388.76 is: 59,876.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,195.41 : 109,290.32 = 43,388.76 : x
  2. Step 2: Convert to fraction form
    79,195.41/109,290.32 = 43,388.76/x
  3. Step 3: Cross multiply
    79,195.41x = 109,290.32 × 43,388.76
  4. Step 4: Simplify right side
    79,195.41x = 4,741,971,464.80
  5. Step 5: Solve for x
    x = 4,741,971,464.80/79,195.41
  6. Step 6: Final answer
    x = 59,876.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.