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Finding the Fourth Proportional to 248,276.64, 372,473.20 and 82,064.48

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Solution

The fourth proportional to 248,276.64, 372,473.20 and 82,064.48 is: 123,115.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,276.64 : 372,473.20 = 82,064.48 : x
  2. Step 2: Convert to fraction form
    248,276.64/372,473.20 = 82,064.48/x
  3. Step 3: Cross multiply
    248,276.64x = 372,473.20 × 82,064.48
  4. Step 4: Simplify right side
    248,276.64x = 30,566,819,471.94
  5. Step 5: Solve for x
    x = 30,566,819,471.94/248,276.64
  6. Step 6: Final answer
    x = 123,115.97

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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.