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Finding the Fourth Proportional to 178,441.79, 246,185.78 and 101,905.70

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Solution

The fourth proportional to 178,441.79, 246,185.78 and 101,905.70 is: 140,593.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,441.79 : 246,185.78 = 101,905.70 : x
  2. Step 2: Convert to fraction form
    178,441.79/246,185.78 = 101,905.70/x
  3. Step 3: Cross multiply
    178,441.79x = 246,185.78 × 101,905.70
  4. Step 4: Simplify right side
    178,441.79x = 25,087,732,500.49
  5. Step 5: Solve for x
    x = 25,087,732,500.49/178,441.79
  6. Step 6: Final answer
    x = 140,593.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.