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Finding the Fourth Proportional to 264,016.87, 396,037.60 and 77,028.37

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Solution

The fourth proportional to 264,016.87, 396,037.60 and 77,028.37 is: 115,546.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,016.87 : 396,037.60 = 77,028.37 : x
  2. Step 2: Convert to fraction form
    264,016.87/396,037.60 = 77,028.37/x
  3. Step 3: Cross multiply
    264,016.87x = 396,037.60 × 77,028.37
  4. Step 4: Simplify right side
    264,016.87x = 30,506,128,806.52
  5. Step 5: Solve for x
    x = 30,506,128,806.52/264,016.87
  6. Step 6: Final answer
    x = 115,546.14

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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.