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Finding the Fourth Proportional to 178,997.91, 247,023.47 and 98,431.56

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Solution

The fourth proportional to 178,997.91, 247,023.47 and 98,431.56 is: 135,839.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,997.91 : 247,023.47 = 98,431.56 : x
  2. Step 2: Convert to fraction form
    178,997.91/247,023.47 = 98,431.56/x
  3. Step 3: Cross multiply
    178,997.91x = 247,023.47 × 98,431.56
  4. Step 4: Simplify right side
    178,997.91x = 24,314,905,016.56
  5. Step 5: Solve for x
    x = 24,314,905,016.56/178,997.91
  6. Step 6: Final answer
    x = 135,839.04

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1.5x scale

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.