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Finding the Fourth Proportional to 178,963.46, 246,970.43 and 98,396.20

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Solution

The fourth proportional to 178,963.46, 246,970.43 and 98,396.20 is: 135,787.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,963.46 : 246,970.43 = 98,396.20 : x
  2. Step 2: Convert to fraction form
    178,963.46/246,970.43 = 98,396.20/x
  3. Step 3: Cross multiply
    178,963.46x = 246,970.43 × 98,396.20
  4. Step 4: Simplify right side
    178,963.46x = 24,300,951,824.37
  5. Step 5: Solve for x
    x = 24,300,951,824.37/178,963.46
  6. Step 6: Final answer
    x = 135,787.23

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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.