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Finding the Fourth Proportional to 65,771.20, 98,575.80 and 44,711.20

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Solution

The fourth proportional to 65,771.20, 98,575.80 and 44,711.20 is: 67,011.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,771.20 : 98,575.80 = 44,711.20 : x
  2. Step 2: Convert to fraction form
    65,771.20/98,575.80 = 44,711.20/x
  3. Step 3: Cross multiply
    65,771.20x = 98,575.80 × 44,711.20
  4. Step 4: Simplify right side
    65,771.20x = 4,407,442,308.96
  5. Step 5: Solve for x
    x = 4,407,442,308.96/65,771.20
  6. Step 6: Final answer
    x = 67,011.74

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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.