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Finding the Fourth Proportional to 110,215.73, 151,956.90 and 71,384.96

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Solution

The fourth proportional to 110,215.73, 151,956.90 and 71,384.96 is: 98,420.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,215.73 : 151,956.90 = 71,384.96 : x
  2. Step 2: Convert to fraction form
    110,215.73/151,956.90 = 71,384.96/x
  3. Step 3: Cross multiply
    110,215.73x = 151,956.90 × 71,384.96
  4. Step 4: Simplify right side
    110,215.73x = 10,847,436,468.44
  5. Step 5: Solve for x
    x = 10,847,436,468.44/110,215.73
  6. Step 6: Final answer
    x = 98,420.04

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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.