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Finding the Fourth Proportional to 123,611.94, 170,497.44 and 119,496.87

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Solution

The fourth proportional to 123,611.94, 170,497.44 and 119,496.87 is: 164,821.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,611.94 : 170,497.44 = 119,496.87 : x
  2. Step 2: Convert to fraction form
    123,611.94/170,497.44 = 119,496.87/x
  3. Step 3: Cross multiply
    123,611.94x = 170,497.44 × 119,496.87
  4. Step 4: Simplify right side
    123,611.94x = 20,373,910,423.01
  5. Step 5: Solve for x
    x = 20,373,910,423.01/123,611.94
  6. Step 6: Final answer
    x = 164,821.54

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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.