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Finding the Fourth Proportional to 68,793.10, 103,153.20 and 24,421.30

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Solution

The fourth proportional to 68,793.10, 103,153.20 and 24,421.30 is: 36,619.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,793.10 : 103,153.20 = 24,421.30 : x
  2. Step 2: Convert to fraction form
    68,793.10/103,153.20 = 24,421.30/x
  3. Step 3: Cross multiply
    68,793.10x = 103,153.20 × 24,421.30
  4. Step 4: Simplify right side
    68,793.10x = 2,519,135,243.16
  5. Step 5: Solve for x
    x = 2,519,135,243.16/68,793.10
  6. Step 6: Final answer
    x = 36,619.01

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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.