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Finding the Fourth Proportional to 110,138.85, 165,263.16 and 43,626.92

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Solution

The fourth proportional to 110,138.85, 165,263.16 and 43,626.92 is: 65,462.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,138.85 : 165,263.16 = 43,626.92 : x
  2. Step 2: Convert to fraction form
    110,138.85/165,263.16 = 43,626.92/x
  3. Step 3: Cross multiply
    110,138.85x = 165,263.16 × 43,626.92
  4. Step 4: Simplify right side
    110,138.85x = 7,209,921,833.95
  5. Step 5: Solve for x
    x = 7,209,921,833.95/110,138.85
  6. Step 6: Final answer
    x = 65,462.11

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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.