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Finding the Fourth Proportional to 110,560.80, 165,862.80 and 43,989.60

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Solution

The fourth proportional to 110,560.80, 165,862.80 and 43,989.60 is: 65,992.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,560.80 : 165,862.80 = 43,989.60 : x
  2. Step 2: Convert to fraction form
    110,560.80/165,862.80 = 43,989.60/x
  3. Step 3: Cross multiply
    110,560.80x = 165,862.80 × 43,989.60
  4. Step 4: Simplify right side
    110,560.80x = 7,296,238,226.88
  5. Step 5: Solve for x
    x = 7,296,238,226.88/110,560.80
  6. Step 6: Final answer
    x = 65,992.99

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1.5x scale

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.