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Finding the Fourth Proportional to 239,788.86, 330,911.31 and 132,363.42

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Solution

The fourth proportional to 239,788.86, 330,911.31 and 132,363.42 is: 182,663.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,788.86 : 330,911.31 = 132,363.42 : x
  2. Step 2: Convert to fraction form
    239,788.86/330,911.31 = 132,363.42/x
  3. Step 3: Cross multiply
    239,788.86x = 330,911.31 × 132,363.42
  4. Step 4: Simplify right side
    239,788.86x = 43,800,552,708.28
  5. Step 5: Solve for x
    x = 43,800,552,708.28/239,788.86
  6. Step 6: Final answer
    x = 182,663.00

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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.