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Finding the Fourth Proportional to 79,216.64, 118,591.68 and 75,795.20

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Solution

The fourth proportional to 79,216.64, 118,591.68 and 75,795.20 is: 113,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,216.64 : 118,591.68 = 75,795.20 : x
  2. Step 2: Convert to fraction form
    79,216.64/118,591.68 = 75,795.20/x
  3. Step 3: Cross multiply
    79,216.64x = 118,591.68 × 75,795.20
  4. Step 4: Simplify right side
    79,216.64x = 8,988,680,103.94
  5. Step 5: Solve for x
    x = 8,988,680,103.94/79,216.64
  6. Step 6: Final answer
    x = 113,469.60

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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.