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Finding the Fourth Proportional to 247,073.01, 340,997.33 and 156,437.39

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Solution

The fourth proportional to 247,073.01, 340,997.33 and 156,437.39 is: 215,906.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,073.01 : 340,997.33 = 156,437.39 : x
  2. Step 2: Convert to fraction form
    247,073.01/340,997.33 = 156,437.39/x
  3. Step 3: Cross multiply
    247,073.01x = 340,997.33 × 156,437.39
  4. Step 4: Simplify right side
    247,073.01x = 53,344,729,815.00
  5. Step 5: Solve for x
    x = 53,344,729,815.00/247,073.01
  6. Step 6: Final answer
    x = 215,906.75

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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.