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Finding the Fourth Proportional to 181,257.60, 271,935.36 and 128,998.80

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Solution

The fourth proportional to 181,257.60, 271,935.36 and 128,998.80 is: 193,533.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,257.60 : 271,935.36 = 128,998.80 : x
  2. Step 2: Convert to fraction form
    181,257.60/271,935.36 = 128,998.80/x
  3. Step 3: Cross multiply
    181,257.60x = 271,935.36 × 128,998.80
  4. Step 4: Simplify right side
    181,257.60x = 35,079,335,117.57
  5. Step 5: Solve for x
    x = 35,079,335,117.57/181,257.60
  6. Step 6: Final answer
    x = 193,533.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.