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Finding the Fourth Proportional to 65,765.80, 98,648.70 and 44,770.60

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Solution

The fourth proportional to 65,765.80, 98,648.70 and 44,770.60 is: 67,155.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,765.80 : 98,648.70 = 44,770.60 : x
  2. Step 2: Convert to fraction form
    65,765.80/98,648.70 = 44,770.60/x
  3. Step 3: Cross multiply
    65,765.80x = 98,648.70 × 44,770.60
  4. Step 4: Simplify right side
    65,765.80x = 4,416,561,488.22
  5. Step 5: Solve for x
    x = 4,416,561,488.22/65,765.80
  6. Step 6: Final answer
    x = 67,155.90

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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.