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Finding the Fourth Proportional to 110,506.80, 165,760.20 and 75,255.60

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Solution

The fourth proportional to 110,506.80, 165,760.20 and 75,255.60 is: 112,883.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,506.80 : 165,760.20 = 75,255.60 : x
  2. Step 2: Convert to fraction form
    110,506.80/165,760.20 = 75,255.60/x
  3. Step 3: Cross multiply
    110,506.80x = 165,760.20 × 75,255.60
  4. Step 4: Simplify right side
    110,506.80x = 12,474,383,307.12
  5. Step 5: Solve for x
    x = 12,474,383,307.12/110,506.80
  6. Step 6: Final answer
    x = 112,883.40

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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.