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Finding the Fourth Proportional to 93,806.65, 140,561.74 and 75,207.43

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Solution

The fourth proportional to 93,806.65, 140,561.74 and 75,207.43 is: 112,692.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,806.65 : 140,561.74 = 75,207.43 : x
  2. Step 2: Convert to fraction form
    93,806.65/140,561.74 = 75,207.43/x
  3. Step 3: Cross multiply
    93,806.65x = 140,561.74 × 75,207.43
  4. Step 4: Simplify right side
    93,806.65x = 10,571,287,221.73
  5. Step 5: Solve for x
    x = 10,571,287,221.73/93,806.65
  6. Step 6: Final answer
    x = 112,692.30

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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.