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Finding the Fourth Proportional to 166,685.80, 250,028.70 and 165,519.40

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Solution

The fourth proportional to 166,685.80, 250,028.70 and 165,519.40 is: 248,279.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,685.80 : 250,028.70 = 165,519.40 : x
  2. Step 2: Convert to fraction form
    166,685.80/250,028.70 = 165,519.40/x
  3. Step 3: Cross multiply
    166,685.80x = 250,028.70 × 165,519.40
  4. Step 4: Simplify right side
    166,685.80x = 41,384,600,406.78
  5. Step 5: Solve for x
    x = 41,384,600,406.78/166,685.80
  6. Step 6: Final answer
    x = 248,279.10

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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.