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Finding the Fourth Proportional to 93,912.40, 140,770.68 and 49,589.20

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Solution

The fourth proportional to 93,912.40, 140,770.68 and 49,589.20 is: 74,332.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,912.40 : 140,770.68 = 49,589.20 : x
  2. Step 2: Convert to fraction form
    93,912.40/140,770.68 = 49,589.20/x
  3. Step 3: Cross multiply
    93,912.40x = 140,770.68 × 49,589.20
  4. Step 4: Simplify right side
    93,912.40x = 6,980,705,404.66
  5. Step 5: Solve for x
    x = 6,980,705,404.66/93,912.40
  6. Step 6: Final answer
    x = 74,332.09

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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.