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Finding the Fourth Proportional to 178,690.56, 246,576 and 107,057.28

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Solution

The fourth proportional to 178,690.56, 246,576 and 107,057.28 is: 147,728.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,690.56 : 246,576 = 107,057.28 : x
  2. Step 2: Convert to fraction form
    178,690.56/246,576 = 107,057.28/x
  3. Step 3: Cross multiply
    178,690.56x = 246,576 × 107,057.28
  4. Step 4: Simplify right side
    178,690.56x = 26,397,755,873.28
  5. Step 5: Solve for x
    x = 26,397,755,873.28/178,690.56
  6. Step 6: Final answer
    x = 147,728.88

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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.