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Finding the Fourth Proportional to 93,640.65, 140,211.87 and 73,173.42

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Solution

The fourth proportional to 93,640.65, 140,211.87 and 73,173.42 is: 109,565.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,640.65 : 140,211.87 = 73,173.42 : x
  2. Step 2: Convert to fraction form
    93,640.65/140,211.87 = 73,173.42/x
  3. Step 3: Cross multiply
    93,640.65x = 140,211.87 × 73,173.42
  4. Step 4: Simplify right side
    93,640.65x = 10,259,782,052.50
  5. Step 5: Solve for x
    x = 10,259,782,052.50/93,640.65
  6. Step 6: Final answer
    x = 109,565.47

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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.