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Finding the Fourth Proportional to 239,780.82, 330,895.73 and 132,350.83

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Solution

The fourth proportional to 239,780.82, 330,895.73 and 132,350.83 is: 182,643.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,780.82 : 330,895.73 = 132,350.83 : x
  2. Step 2: Convert to fraction form
    239,780.82/330,895.73 = 132,350.83/x
  3. Step 3: Cross multiply
    239,780.82x = 330,895.73 × 132,350.83
  4. Step 4: Simplify right side
    239,780.82x = 43,794,324,012.59
  5. Step 5: Solve for x
    x = 43,794,324,012.59/239,780.82
  6. Step 6: Final answer
    x = 182,643.15

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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.