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Finding the Fourth Proportional to 171,954.80, 257,932.20 and 118,810.70

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Solution

The fourth proportional to 171,954.80, 257,932.20 and 118,810.70 is: 178,216.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,954.80 : 257,932.20 = 118,810.70 : x
  2. Step 2: Convert to fraction form
    171,954.80/257,932.20 = 118,810.70/x
  3. Step 3: Cross multiply
    171,954.80x = 257,932.20 × 118,810.70
  4. Step 4: Simplify right side
    171,954.80x = 30,645,105,234.54
  5. Step 5: Solve for x
    x = 30,645,105,234.54/171,954.80
  6. Step 6: Final answer
    x = 178,216.05

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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.