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Finding the Fourth Proportional to 239,678.98, 330,763.92 and 132,255.93

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Solution

The fourth proportional to 239,678.98, 330,763.92 and 132,255.93 is: 182,517.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,678.98 : 330,763.92 = 132,255.93 : x
  2. Step 2: Convert to fraction form
    239,678.98/330,763.92 = 132,255.93/x
  3. Step 3: Cross multiply
    239,678.98x = 330,763.92 × 132,255.93
  4. Step 4: Simplify right side
    239,678.98x = 43,745,489,850.05
  5. Step 5: Solve for x
    x = 43,745,489,850.05/239,678.98
  6. Step 6: Final answer
    x = 182,517.01

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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.