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Finding the Fourth Proportional to 93,954.58, 140,784.06 and 72,659.43

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Solution

The fourth proportional to 93,954.58, 140,784.06 and 72,659.43 is: 108,874.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,954.58 : 140,784.06 = 72,659.43 : x
  2. Step 2: Convert to fraction form
    93,954.58/140,784.06 = 72,659.43/x
  3. Step 3: Cross multiply
    93,954.58x = 140,784.06 × 72,659.43
  4. Step 4: Simplify right side
    93,954.58x = 10,229,289,722.98
  5. Step 5: Solve for x
    x = 10,229,289,722.98/93,954.58
  6. Step 6: Final answer
    x = 108,874.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.