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Finding the Fourth Proportional to 264,247.28, 396,222.40 and 86,739.44

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Solution

The fourth proportional to 264,247.28, 396,222.40 and 86,739.44 is: 130,060.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,247.28 : 396,222.40 = 86,739.44 : x
  2. Step 2: Convert to fraction form
    264,247.28/396,222.40 = 86,739.44/x
  3. Step 3: Cross multiply
    264,247.28x = 396,222.40 × 86,739.44
  4. Step 4: Simplify right side
    264,247.28x = 34,368,109,091.46
  5. Step 5: Solve for x
    x = 34,368,109,091.46/264,247.28
  6. Step 6: Final answer
    x = 130,060.41

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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.