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Finding the Fourth Proportional to 148,359.68, 204,736.46 and 87,960.12

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Solution

The fourth proportional to 148,359.68, 204,736.46 and 87,960.12 is: 121,385.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,359.68 : 204,736.46 = 87,960.12 : x
  2. Step 2: Convert to fraction form
    148,359.68/204,736.46 = 87,960.12/x
  3. Step 3: Cross multiply
    148,359.68x = 204,736.46 × 87,960.12
  4. Step 4: Simplify right side
    148,359.68x = 18,008,643,589.98
  5. Step 5: Solve for x
    x = 18,008,643,589.98/148,359.68
  6. Step 6: Final answer
    x = 121,385.03

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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.