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Finding the Fourth Proportional to 178,687.84, 246,589.48 and 98,120.56

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Solution

The fourth proportional to 178,687.84, 246,589.48 and 98,120.56 is: 135,406.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,687.84 : 246,589.48 = 98,120.56 : x
  2. Step 2: Convert to fraction form
    178,687.84/246,589.48 = 98,120.56/x
  3. Step 3: Cross multiply
    178,687.84x = 246,589.48 × 98,120.56
  4. Step 4: Simplify right side
    178,687.84x = 24,195,497,867.71
  5. Step 5: Solve for x
    x = 24,195,497,867.71/178,687.84
  6. Step 6: Final answer
    x = 135,406.52

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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.