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Finding the Fourth Proportional to 162,551.70, 243,815.40 and 67,757.40

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Solution

The fourth proportional to 162,551.70, 243,815.40 and 67,757.40 is: 101,631.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,551.70 : 243,815.40 = 67,757.40 : x
  2. Step 2: Convert to fraction form
    162,551.70/243,815.40 = 67,757.40/x
  3. Step 3: Cross multiply
    162,551.70x = 243,815.40 × 67,757.40
  4. Step 4: Simplify right side
    162,551.70x = 16,520,297,583.96
  5. Step 5: Solve for x
    x = 16,520,297,583.96/162,551.70
  6. Step 6: Final answer
    x = 101,631.04

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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.