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Finding the Fourth Proportional to 181,128.92, 271,339.94 and 118,609.88

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Solution

The fourth proportional to 181,128.92, 271,339.94 and 118,609.88 is: 177,683.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,128.92 : 271,339.94 = 118,609.88 : x
  2. Step 2: Convert to fraction form
    181,128.92/271,339.94 = 118,609.88/x
  3. Step 3: Cross multiply
    181,128.92x = 271,339.94 × 118,609.88
  4. Step 4: Simplify right side
    181,128.92x = 32,183,597,722.61
  5. Step 5: Solve for x
    x = 32,183,597,722.61/181,128.92
  6. Step 6: Final answer
    x = 177,683.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.