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Finding the Fourth Proportional to 239,634.86, 330,693.84 and 132,205.77

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Solution

The fourth proportional to 239,634.86, 330,693.84 and 132,205.77 is: 182,442.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,634.86 : 330,693.84 = 132,205.77 : x
  2. Step 2: Convert to fraction form
    239,634.86/330,693.84 = 132,205.77/x
  3. Step 3: Cross multiply
    239,634.86x = 330,693.84 × 132,205.77
  4. Step 4: Simplify right side
    239,634.86x = 43,719,633,751.46
  5. Step 5: Solve for x
    x = 43,719,633,751.46/239,634.86
  6. Step 6: Final answer
    x = 182,442.72

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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.