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Finding the Fourth Proportional to 110,335.20, 165,675.60 and 63,679.20

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Solution

The fourth proportional to 110,335.20, 165,675.60 and 63,679.20 is: 95,618.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,335.20 : 165,675.60 = 63,679.20 : x
  2. Step 2: Convert to fraction form
    110,335.20/165,675.60 = 63,679.20/x
  3. Step 3: Cross multiply
    110,335.20x = 165,675.60 × 63,679.20
  4. Step 4: Simplify right side
    110,335.20x = 10,550,089,667.52
  5. Step 5: Solve for x
    x = 10,550,089,667.52/110,335.20
  6. Step 6: Final answer
    x = 95,618.53

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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.