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Finding the Fourth Proportional to 74,187.76, 111,203.88 and 27,410.80

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Solution

The fourth proportional to 74,187.76, 111,203.88 and 27,410.80 is: 41,087.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,187.76 : 111,203.88 = 27,410.80 : x
  2. Step 2: Convert to fraction form
    74,187.76/111,203.88 = 27,410.80/x
  3. Step 3: Cross multiply
    74,187.76x = 111,203.88 × 27,410.80
  4. Step 4: Simplify right side
    74,187.76x = 3,048,187,313.90
  5. Step 5: Solve for x
    x = 3,048,187,313.90/74,187.76
  6. Step 6: Final answer
    x = 41,087.47

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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.