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Finding the Fourth Proportional to 239,833.13, 330,961.05 and 132,400.86

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Solution

The fourth proportional to 239,833.13, 330,961.05 and 132,400.86 is: 182,708.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,833.13 : 330,961.05 = 132,400.86 : x
  2. Step 2: Convert to fraction form
    239,833.13/330,961.05 = 132,400.86/x
  3. Step 3: Cross multiply
    239,833.13x = 330,961.05 × 132,400.86
  4. Step 4: Simplify right side
    239,833.13x = 43,819,527,646.50
  5. Step 5: Solve for x
    x = 43,819,527,646.50/239,833.13
  6. Step 6: Final answer
    x = 182,708.40

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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.