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Finding the Fourth Proportional to 110,419.20, 165,801.60 and 63,763.20

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Solution

The fourth proportional to 110,419.20, 165,801.60 and 63,763.20 is: 95,744.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,419.20 : 165,801.60 = 63,763.20 : x
  2. Step 2: Convert to fraction form
    110,419.20/165,801.60 = 63,763.20/x
  3. Step 3: Cross multiply
    110,419.20x = 165,801.60 × 63,763.20
  4. Step 4: Simplify right side
    110,419.20x = 10,572,040,581.12
  5. Step 5: Solve for x
    x = 10,572,040,581.12/110,419.20
  6. Step 6: Final answer
    x = 95,744.59

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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.