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Finding the Fourth Proportional to 162,811.20, 244,216.80 and 134,817.60

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Solution

The fourth proportional to 162,811.20, 244,216.80 and 134,817.60 is: 202,226.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,811.20 : 244,216.80 = 134,817.60 : x
  2. Step 2: Convert to fraction form
    162,811.20/244,216.80 = 134,817.60/x
  3. Step 3: Cross multiply
    162,811.20x = 244,216.80 × 134,817.60
  4. Step 4: Simplify right side
    162,811.20x = 32,924,722,855.68
  5. Step 5: Solve for x
    x = 32,924,722,855.68/162,811.20
  6. Step 6: Final answer
    x = 202,226.40

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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.