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Finding the Fourth Proportional to 146,891.28, 202,709.94 and 79,823.28

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Solution

The fourth proportional to 146,891.28, 202,709.94 and 79,823.28 is: 110,156.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,891.28 : 202,709.94 = 79,823.28 : x
  2. Step 2: Convert to fraction form
    146,891.28/202,709.94 = 79,823.28/x
  3. Step 3: Cross multiply
    146,891.28x = 202,709.94 × 79,823.28
  4. Step 4: Simplify right side
    146,891.28x = 16,180,972,299.40
  5. Step 5: Solve for x
    x = 16,180,972,299.40/146,891.28
  6. Step 6: Final answer
    x = 110,156.11

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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.