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Finding the Fourth Proportional to 118,115.62, 162,867.13 and 96,538.41

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Solution

The fourth proportional to 118,115.62, 162,867.13 and 96,538.41 is: 133,114.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,115.62 : 162,867.13 = 96,538.41 : x
  2. Step 2: Convert to fraction form
    118,115.62/162,867.13 = 96,538.41/x
  3. Step 3: Cross multiply
    118,115.62x = 162,867.13 × 96,538.41
  4. Step 4: Simplify right side
    118,115.62x = 15,722,933,771.46
  5. Step 5: Solve for x
    x = 15,722,933,771.46/118,115.62
  6. Step 6: Final answer
    x = 133,114.77

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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.