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Finding the Fourth Proportional to 166,851.29, 250,313.84 and 91,932.87

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Solution

The fourth proportional to 166,851.29, 250,313.84 and 91,932.87 is: 137,919.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,851.29 : 250,313.84 = 91,932.87 : x
  2. Step 2: Convert to fraction form
    166,851.29/250,313.84 = 91,932.87/x
  3. Step 3: Cross multiply
    166,851.29x = 250,313.84 × 91,932.87
  4. Step 4: Simplify right side
    166,851.29x = 23,012,069,711.92
  5. Step 5: Solve for x
    x = 23,012,069,711.92/166,851.29
  6. Step 6: Final answer
    x = 137,919.64

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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.