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Finding the Fourth Proportional to 123,468.57, 185,213.79 and 34,722.81

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Solution

The fourth proportional to 123,468.57, 185,213.79 and 34,722.81 is: 52,087.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,468.57 : 185,213.79 = 34,722.81 : x
  2. Step 2: Convert to fraction form
    123,468.57/185,213.79 = 34,722.81/x
  3. Step 3: Cross multiply
    123,468.57x = 185,213.79 × 34,722.81
  4. Step 4: Simplify right side
    123,468.57x = 6,431,143,239.55
  5. Step 5: Solve for x
    x = 6,431,143,239.55/123,468.57
  6. Step 6: Final answer
    x = 52,087.29

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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.