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Finding the Fourth Proportional to 93,872.40, 140,766.50 and 55,939.56

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Solution

The fourth proportional to 93,872.40, 140,766.50 and 55,939.56 is: 83,884.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,872.40 : 140,766.50 = 55,939.56 : x
  2. Step 2: Convert to fraction form
    93,872.40/140,766.50 = 55,939.56/x
  3. Step 3: Cross multiply
    93,872.40x = 140,766.50 × 55,939.56
  4. Step 4: Simplify right side
    93,872.40x = 7,874,416,072.74
  5. Step 5: Solve for x
    x = 7,874,416,072.74/93,872.40
  6. Step 6: Final answer
    x = 83,884.25

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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.