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Finding the Fourth Proportional to 79,217.64, 118,593.18 and 75,796.20

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Solution

The fourth proportional to 79,217.64, 118,593.18 and 75,796.20 is: 113,471.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,217.64 : 118,593.18 = 75,796.20 : x
  2. Step 2: Convert to fraction form
    79,217.64/118,593.18 = 75,796.20/x
  3. Step 3: Cross multiply
    79,217.64x = 118,593.18 × 75,796.20
  4. Step 4: Simplify right side
    79,217.64x = 8,988,912,389.92
  5. Step 5: Solve for x
    x = 8,988,912,389.92/79,217.64
  6. Step 6: Final answer
    x = 113,471.10

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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.