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Finding the Fourth Proportional to 141,251.37, 194,879.37 and 79,989.18

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Solution

The fourth proportional to 141,251.37, 194,879.37 and 79,989.18 is: 110,358.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,251.37 : 194,879.37 = 79,989.18 : x
  2. Step 2: Convert to fraction form
    141,251.37/194,879.37 = 79,989.18/x
  3. Step 3: Cross multiply
    141,251.37x = 194,879.37 × 79,989.18
  4. Step 4: Simplify right side
    141,251.37x = 15,588,241,005.22
  5. Step 5: Solve for x
    x = 15,588,241,005.22/141,251.37
  6. Step 6: Final answer
    x = 110,358.16

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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.