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Finding the Fourth Proportional to 146,436.44, 202,082.46 and 79,368.44

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Solution

The fourth proportional to 146,436.44, 202,082.46 and 79,368.44 is: 109,528.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,436.44 : 202,082.46 = 79,368.44 : x
  2. Step 2: Convert to fraction form
    146,436.44/202,082.46 = 79,368.44/x
  3. Step 3: Cross multiply
    146,436.44x = 202,082.46 × 79,368.44
  4. Step 4: Simplify right side
    146,436.44x = 16,038,969,601.56
  5. Step 5: Solve for x
    x = 16,038,969,601.56/146,436.44
  6. Step 6: Final answer
    x = 109,528.54

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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.