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Finding the Fourth Proportional to 168,601.28, 232,694.14 and 100,621.14

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Solution

The fourth proportional to 168,601.28, 232,694.14 and 100,621.14 is: 138,871.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,601.28 : 232,694.14 = 100,621.14 : x
  2. Step 2: Convert to fraction form
    168,601.28/232,694.14 = 100,621.14/x
  3. Step 3: Cross multiply
    168,601.28x = 232,694.14 × 100,621.14
  4. Step 4: Simplify right side
    168,601.28x = 23,413,949,638.12
  5. Step 5: Solve for x
    x = 23,413,949,638.12/168,601.28
  6. Step 6: Final answer
    x = 138,871.72

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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.