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Finding the Fourth Proportional to 110,886.43, 166,343.48 and 43,409.75

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Solution

The fourth proportional to 110,886.43, 166,343.48 and 43,409.75 is: 65,120.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,886.43 : 166,343.48 = 43,409.75 : x
  2. Step 2: Convert to fraction form
    110,886.43/166,343.48 = 43,409.75/x
  3. Step 3: Cross multiply
    110,886.43x = 166,343.48 × 43,409.75
  4. Step 4: Simplify right side
    110,886.43x = 7,220,927,913.56
  5. Step 5: Solve for x
    x = 7,220,927,913.56/110,886.43
  6. Step 6: Final answer
    x = 65,120.03

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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.