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Finding the Fourth Proportional to 181,796.57, 250,793.10 and 128,111.12

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Solution

The fourth proportional to 181,796.57, 250,793.10 and 128,111.12 is: 176,732.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,796.57 : 250,793.10 = 128,111.12 : x
  2. Step 2: Convert to fraction form
    181,796.57/250,793.10 = 128,111.12/x
  3. Step 3: Cross multiply
    181,796.57x = 250,793.10 × 128,111.12
  4. Step 4: Simplify right side
    181,796.57x = 32,129,383,675.31
  5. Step 5: Solve for x
    x = 32,129,383,675.31/181,796.57
  6. Step 6: Final answer
    x = 176,732.62

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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.