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Finding the Fourth Proportional to 74,187.51, 111,203.51 and 27,410.55

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Solution

The fourth proportional to 74,187.51, 111,203.51 and 27,410.55 is: 41,087.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,187.51 : 111,203.51 = 27,410.55 : x
  2. Step 2: Convert to fraction form
    74,187.51/111,203.51 = 27,410.55/x
  3. Step 3: Cross multiply
    74,187.51x = 111,203.51 × 27,410.55
  4. Step 4: Simplify right side
    74,187.51x = 3,048,149,233.98
  5. Step 5: Solve for x
    x = 3,048,149,233.98/74,187.51
  6. Step 6: Final answer
    x = 41,087.09

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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.