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Finding the Fourth Proportional to 79,334.70, 109,451.70 and 50,655.42

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Solution

The fourth proportional to 79,334.70, 109,451.70 and 50,655.42 is: 69,885.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,334.70 : 109,451.70 = 50,655.42 : x
  2. Step 2: Convert to fraction form
    79,334.70/109,451.70 = 50,655.42/x
  3. Step 3: Cross multiply
    79,334.70x = 109,451.70 × 50,655.42
  4. Step 4: Simplify right side
    79,334.70x = 5,544,321,833.21
  5. Step 5: Solve for x
    x = 5,544,321,833.21/79,334.70
  6. Step 6: Final answer
    x = 69,885.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.