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Finding the Fourth Proportional to 239,718.92, 330,811.76 and 132,288.96

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Solution

The fourth proportional to 239,718.92, 330,811.76 and 132,288.96 is: 182,558.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,718.92 : 330,811.76 = 132,288.96 : x
  2. Step 2: Convert to fraction form
    239,718.92/330,811.76 = 132,288.96/x
  3. Step 3: Cross multiply
    239,718.92x = 330,811.76 × 132,288.96
  4. Step 4: Simplify right side
    239,718.92x = 43,762,743,686.17
  5. Step 5: Solve for x
    x = 43,762,743,686.17/239,718.92
  6. Step 6: Final answer
    x = 182,558.57

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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.