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Finding the Fourth Proportional to 165,989.20, 248,983.80 and 41,330.20

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Solution

The fourth proportional to 165,989.20, 248,983.80 and 41,330.20 is: 61,995.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,989.20 : 248,983.80 = 41,330.20 : x
  2. Step 2: Convert to fraction form
    165,989.20/248,983.80 = 41,330.20/x
  3. Step 3: Cross multiply
    165,989.20x = 248,983.80 × 41,330.20
  4. Step 4: Simplify right side
    165,989.20x = 10,290,550,250.76
  5. Step 5: Solve for x
    x = 10,290,550,250.76/165,989.20
  6. Step 6: Final answer
    x = 61,995.30

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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.