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Finding the Fourth Proportional to 417,239.22, 625,695.03 and 147,309.75

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Solution

The fourth proportional to 417,239.22, 625,695.03 and 147,309.75 is: 220,906.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,239.22 : 625,695.03 = 147,309.75 : x
  2. Step 2: Convert to fraction form
    417,239.22/625,695.03 = 147,309.75/x
  3. Step 3: Cross multiply
    417,239.22x = 625,695.03 × 147,309.75
  4. Step 4: Simplify right side
    417,239.22x = 92,170,978,445.54
  5. Step 5: Solve for x
    x = 92,170,978,445.54/417,239.22
  6. Step 6: Final answer
    x = 220,906.79

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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.