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Finding the Fourth Proportional to 239,795.31, 330,915.66 and 132,365.31

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Solution

The fourth proportional to 239,795.31, 330,915.66 and 132,365.31 is: 182,663.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,795.31 : 330,915.66 = 132,365.31 : x
  2. Step 2: Convert to fraction form
    239,795.31/330,915.66 = 132,365.31/x
  3. Step 3: Cross multiply
    239,795.31x = 330,915.66 × 132,365.31
  4. Step 4: Simplify right side
    239,795.31x = 43,801,753,919.75
  5. Step 5: Solve for x
    x = 43,801,753,919.75/239,795.31
  6. Step 6: Final answer
    x = 182,663.10

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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.