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Finding the Fourth Proportional to 168,652.80, 252,979.20 and 158,811.30

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Solution

The fourth proportional to 168,652.80, 252,979.20 and 158,811.30 is: 238,216.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,652.80 : 252,979.20 = 158,811.30 : x
  2. Step 2: Convert to fraction form
    168,652.80/252,979.20 = 158,811.30/x
  3. Step 3: Cross multiply
    168,652.80x = 252,979.20 × 158,811.30
  4. Step 4: Simplify right side
    168,652.80x = 40,175,955,624.96
  5. Step 5: Solve for x
    x = 40,175,955,624.96/168,652.80
  6. Step 6: Final answer
    x = 238,216.95

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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.