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Finding the Fourth Proportional to 118,094.96, 162,974.12 and 72,802.86

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Solution

The fourth proportional to 118,094.96, 162,974.12 and 72,802.86 is: 100,469.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,094.96 : 162,974.12 = 72,802.86 : x
  2. Step 2: Convert to fraction form
    118,094.96/162,974.12 = 72,802.86/x
  3. Step 3: Cross multiply
    118,094.96x = 162,974.12 × 72,802.86
  4. Step 4: Simplify right side
    118,094.96x = 11,864,981,677.97
  5. Step 5: Solve for x
    x = 11,864,981,677.97/118,094.96
  6. Step 6: Final answer
    x = 100,469.84

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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.