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Finding the Fourth Proportional to 165,591.98, 248,343.37 and 45,620.36

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Solution

The fourth proportional to 165,591.98, 248,343.37 and 45,620.36 is: 68,418.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,591.98 : 248,343.37 = 45,620.36 : x
  2. Step 2: Convert to fraction form
    165,591.98/248,343.37 = 45,620.36/x
  3. Step 3: Cross multiply
    165,591.98x = 248,343.37 × 45,620.36
  4. Step 4: Simplify right side
    165,591.98x = 11,329,513,943.01
  5. Step 5: Solve for x
    x = 11,329,513,943.01/165,591.98
  6. Step 6: Final answer
    x = 68,418.25

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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.