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Finding the Fourth Proportional to 74,179.99, 111,082.87 and 49,144.51

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Solution

The fourth proportional to 74,179.99, 111,082.87 and 49,144.51 is: 73,592.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,179.99 : 111,082.87 = 49,144.51 : x
  2. Step 2: Convert to fraction form
    74,179.99/111,082.87 = 49,144.51/x
  3. Step 3: Cross multiply
    74,179.99x = 111,082.87 × 49,144.51
  4. Step 4: Simplify right side
    74,179.99x = 5,459,113,215.54
  5. Step 5: Solve for x
    x = 5,459,113,215.54/74,179.99
  6. Step 6: Final answer
    x = 73,592.80

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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.