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Finding the Fourth Proportional to 442,171.57, 610,163.20 and 248,548.49

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Solution

The fourth proportional to 442,171.57, 610,163.20 and 248,548.49 is: 342,978.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,171.57 : 610,163.20 = 248,548.49 : x
  2. Step 2: Convert to fraction form
    442,171.57/610,163.20 = 248,548.49/x
  3. Step 3: Cross multiply
    442,171.57x = 610,163.20 × 248,548.49
  4. Step 4: Simplify right side
    442,171.57x = 151,655,141,402.55
  5. Step 5: Solve for x
    x = 151,655,141,402.55/442,171.57
  6. Step 6: Final answer
    x = 342,978.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.