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Finding the Fourth Proportional to 192,888.37, 266,142.90 and 116,419.87

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Solution

The fourth proportional to 192,888.37, 266,142.90 and 116,419.87 is: 160,633.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,888.37 : 266,142.90 = 116,419.87 : x
  2. Step 2: Convert to fraction form
    192,888.37/266,142.90 = 116,419.87/x
  3. Step 3: Cross multiply
    192,888.37x = 266,142.90 × 116,419.87
  4. Step 4: Simplify right side
    192,888.37x = 30,984,321,819.42
  5. Step 5: Solve for x
    x = 30,984,321,819.42/192,888.37
  6. Step 6: Final answer
    x = 160,633.44

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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.