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Finding the Fourth Proportional to 79,196.67, 109,286.80 and 43,380.44

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Solution

The fourth proportional to 79,196.67, 109,286.80 and 43,380.44 is: 59,862.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,196.67 : 109,286.80 = 43,380.44 : x
  2. Step 2: Convert to fraction form
    79,196.67/109,286.80 = 43,380.44/x
  3. Step 3: Cross multiply
    79,196.67x = 109,286.80 × 43,380.44
  4. Step 4: Simplify right side
    79,196.67x = 4,740,909,470.19
  5. Step 5: Solve for x
    x = 4,740,909,470.19/79,196.67
  6. Step 6: Final answer
    x = 59,862.49

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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.