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Finding the Fourth Proportional to 178,965.28, 246,972.24 and 98,398

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Solution

The fourth proportional to 178,965.28, 246,972.24 and 98,398 is: 135,789.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,965.28 : 246,972.24 = 98,398 : x
  2. Step 2: Convert to fraction form
    178,965.28/246,972.24 = 98,398/x
  3. Step 3: Cross multiply
    178,965.28x = 246,972.24 × 98,398
  4. Step 4: Simplify right side
    178,965.28x = 24,301,574,471.52
  5. Step 5: Solve for x
    x = 24,301,574,471.52/178,965.28
  6. Step 6: Final answer
    x = 135,789.32

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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.