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Finding the Fourth Proportional to 172,604.16, 238,165.92 and 108,976.32

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Solution

The fourth proportional to 172,604.16, 238,165.92 and 108,976.32 is: 150,369.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,604.16 : 238,165.92 = 108,976.32 : x
  2. Step 2: Convert to fraction form
    172,604.16/238,165.92 = 108,976.32/x
  3. Step 3: Cross multiply
    172,604.16x = 238,165.92 × 108,976.32
  4. Step 4: Simplify right side
    172,604.16x = 25,954,445,511.01
  5. Step 5: Solve for x
    x = 25,954,445,511.01/172,604.16
  6. Step 6: Final answer
    x = 150,369.76

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1.5x scale

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.