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Finding the Fourth Proportional to 156,324.81, 215,732.22 and 95,928.81

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Solution

The fourth proportional to 156,324.81, 215,732.22 and 95,928.81 is: 132,384.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,324.81 : 215,732.22 = 95,928.81 : x
  2. Step 2: Convert to fraction form
    156,324.81/215,732.22 = 95,928.81/x
  3. Step 3: Cross multiply
    156,324.81x = 215,732.22 × 95,928.81
  4. Step 4: Simplify right side
    156,324.81x = 20,694,935,143.26
  5. Step 5: Solve for x
    x = 20,694,935,143.26/156,324.81
  6. Step 6: Final answer
    x = 132,384.20

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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.