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Finding the Fourth Proportional to 239,372.82, 330,336.66 and 131,946.66

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Solution

The fourth proportional to 239,372.82, 330,336.66 and 131,946.66 is: 182,087.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,372.82 : 330,336.66 = 131,946.66 : x
  2. Step 2: Convert to fraction form
    239,372.82/330,336.66 = 131,946.66/x
  3. Step 3: Cross multiply
    239,372.82x = 330,336.66 × 131,946.66
  4. Step 4: Simplify right side
    239,372.82x = 43,586,818,962.56
  5. Step 5: Solve for x
    x = 43,586,818,962.56/239,372.82
  6. Step 6: Final answer
    x = 182,087.59

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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.