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Finding the Fourth Proportional to 118,490.52, 163,611.18 and 73,234.20

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Solution

The fourth proportional to 118,490.52, 163,611.18 and 73,234.20 is: 101,121.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,490.52 : 163,611.18 = 73,234.20 : x
  2. Step 2: Convert to fraction form
    118,490.52/163,611.18 = 73,234.20/x
  3. Step 3: Cross multiply
    118,490.52x = 163,611.18 × 73,234.20
  4. Step 4: Simplify right side
    118,490.52x = 11,981,933,878.36
  5. Step 5: Solve for x
    x = 11,981,933,878.36/118,490.52
  6. Step 6: Final answer
    x = 101,121.46

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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.