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Finding the Fourth Proportional to 207,743.42, 311,369.08 and 95,328.88

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Solution

The fourth proportional to 207,743.42, 311,369.08 and 95,328.88 is: 142,880.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,743.42 : 311,369.08 = 95,328.88 : x
  2. Step 2: Convert to fraction form
    207,743.42/311,369.08 = 95,328.88/x
  3. Step 3: Cross multiply
    207,743.42x = 311,369.08 × 95,328.88
  4. Step 4: Simplify right side
    207,743.42x = 29,682,465,663.03
  5. Step 5: Solve for x
    x = 29,682,465,663.03/207,743.42
  6. Step 6: Final answer
    x = 142,880.41

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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.