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Finding the Fourth Proportional to 110,904.90, 166,371.15 and 43,428.22

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Solution

The fourth proportional to 110,904.90, 166,371.15 and 43,428.22 is: 65,147.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,904.90 : 166,371.15 = 43,428.22 : x
  2. Step 2: Convert to fraction form
    110,904.90/166,371.15 = 43,428.22/x
  3. Step 3: Cross multiply
    110,904.90x = 166,371.15 × 43,428.22
  4. Step 4: Simplify right side
    110,904.90x = 7,225,202,903.85
  5. Step 5: Solve for x
    x = 7,225,202,903.85/110,904.90
  6. Step 6: Final answer
    x = 65,147.74

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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.