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Finding the Fourth Proportional to 340,611.66, 510,979.44 and 115,960.58

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Solution

The fourth proportional to 340,611.66, 510,979.44 and 115,960.58 is: 173,961.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,611.66 : 510,979.44 = 115,960.58 : x
  2. Step 2: Convert to fraction form
    340,611.66/510,979.44 = 115,960.58/x
  3. Step 3: Cross multiply
    340,611.66x = 510,979.44 × 115,960.58
  4. Step 4: Simplify right side
    340,611.66x = 59,253,472,230.48
  5. Step 5: Solve for x
    x = 59,253,472,230.48/340,611.66
  6. Step 6: Final answer
    x = 173,961.96

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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.