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Finding the Fourth Proportional to 172,956.80, 238,694.88 and 97,520.96

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Solution

The fourth proportional to 172,956.80, 238,694.88 and 97,520.96 is: 134,587.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,956.80 : 238,694.88 = 97,520.96 : x
  2. Step 2: Convert to fraction form
    172,956.80/238,694.88 = 97,520.96/x
  3. Step 3: Cross multiply
    172,956.80x = 238,694.88 × 97,520.96
  4. Step 4: Simplify right side
    172,956.80x = 23,277,753,844.68
  5. Step 5: Solve for x
    x = 23,277,753,844.68/172,956.80
  6. Step 6: Final answer
    x = 134,587.10

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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.