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Finding the Fourth Proportional to 239,153.25, 330,046.46 and 131,723.25

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Solution

The fourth proportional to 239,153.25, 330,046.46 and 131,723.25 is: 181,786.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,153.25 : 330,046.46 = 131,723.25 : x
  2. Step 2: Convert to fraction form
    239,153.25/330,046.46 = 131,723.25/x
  3. Step 3: Cross multiply
    239,153.25x = 330,046.46 × 131,723.25
  4. Step 4: Simplify right side
    239,153.25x = 43,474,791,703.58
  5. Step 5: Solve for x
    x = 43,474,791,703.58/239,153.25
  6. Step 6: Final answer
    x = 181,786.33

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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.