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Finding the Fourth Proportional to 118,990.92, 178,431 and 44,108.04

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Solution

The fourth proportional to 118,990.92, 178,431 and 44,108.04 is: 66,141.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,990.92 : 178,431 = 44,108.04 : x
  2. Step 2: Convert to fraction form
    118,990.92/178,431 = 44,108.04/x
  3. Step 3: Cross multiply
    118,990.92x = 178,431 × 44,108.04
  4. Step 4: Simplify right side
    118,990.92x = 7,870,241,685.24
  5. Step 5: Solve for x
    x = 7,870,241,685.24/118,990.92
  6. Step 6: Final answer
    x = 66,141.53

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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.