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Finding the Fourth Proportional to 166,811.80, 250,217.70 and 162,437.80

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Solution

The fourth proportional to 166,811.80, 250,217.70 and 162,437.80 is: 243,656.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,811.80 : 250,217.70 = 162,437.80 : x
  2. Step 2: Convert to fraction form
    166,811.80/250,217.70 = 162,437.80/x
  3. Step 3: Cross multiply
    166,811.80x = 250,217.70 × 162,437.80
  4. Step 4: Simplify right side
    166,811.80x = 40,644,812,709.06
  5. Step 5: Solve for x
    x = 40,644,812,709.06/166,811.80
  6. Step 6: Final answer
    x = 243,656.70

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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.