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Finding the Fourth Proportional to 79,007.40, 109,060.02 and 47,164.68

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Solution

The fourth proportional to 79,007.40, 109,060.02 and 47,164.68 is: 65,105.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,007.40 : 109,060.02 = 47,164.68 : x
  2. Step 2: Convert to fraction form
    79,007.40/109,060.02 = 47,164.68/x
  3. Step 3: Cross multiply
    79,007.40x = 109,060.02 × 47,164.68
  4. Step 4: Simplify right side
    79,007.40x = 5,143,780,944.09
  5. Step 5: Solve for x
    x = 5,143,780,944.09/79,007.40
  6. Step 6: Final answer
    x = 65,105.05

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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.