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Finding the Fourth Proportional to 93,839.70, 140,661.14 and 43,877.69

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Solution

The fourth proportional to 93,839.70, 140,661.14 and 43,877.69 is: 65,770.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,839.70 : 140,661.14 = 43,877.69 : x
  2. Step 2: Convert to fraction form
    93,839.70/140,661.14 = 43,877.69/x
  3. Step 3: Cross multiply
    93,839.70x = 140,661.14 × 43,877.69
  4. Step 4: Simplify right side
    93,839.70x = 6,171,885,895.97
  5. Step 5: Solve for x
    x = 6,171,885,895.97/93,839.70
  6. Step 6: Final answer
    x = 65,770.52

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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.