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Finding the Fourth Proportional to 79,299.73, 109,433.63 and 43,490.49

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Solution

The fourth proportional to 79,299.73, 109,433.63 and 43,490.49 is: 60,016.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,299.73 : 109,433.63 = 43,490.49 : x
  2. Step 2: Convert to fraction form
    79,299.73/109,433.63 = 43,490.49/x
  3. Step 3: Cross multiply
    79,299.73x = 109,433.63 × 43,490.49
  4. Step 4: Simplify right side
    79,299.73x = 4,759,321,889.53
  5. Step 5: Solve for x
    x = 4,759,321,889.53/79,299.73
  6. Step 6: Final answer
    x = 60,016.88

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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.