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Finding the Fourth Proportional to 171,866.80, 257,800.20 and 162,025.30

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Solution

The fourth proportional to 171,866.80, 257,800.20 and 162,025.30 is: 243,037.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,866.80 : 257,800.20 = 162,025.30 : x
  2. Step 2: Convert to fraction form
    171,866.80/257,800.20 = 162,025.30/x
  3. Step 3: Cross multiply
    171,866.80x = 257,800.20 × 162,025.30
  4. Step 4: Simplify right side
    171,866.80x = 41,770,154,745.06
  5. Step 5: Solve for x
    x = 41,770,154,745.06/171,866.80
  6. Step 6: Final answer
    x = 243,037.95

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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.